Blender is your one stop shop for a free open-source 3D animation software. Blender is used for 3D modeling, animation, rendering, post-production, interactive creation and playback. The new release, version 2.46 has been released to fix bugs but it adds a lot of new features such as subsurface scattering support(SSS) and two composite nodes, cloth and fur simulation, physics caching/baking, shading, glossy reflection/refraction, ray traced soft shadows, physics and particles, new rendering features and much more. Blender is supported for all major operating systems under the General Public License (GNU). Whether you’re a hobbyist that is looking for some free professional-quality software or an actual animation artist, Blender is the perfect program to suite your needs. If you want to add extras you can use Python embedded scripting which can be easily found and downloaded from the user forums. Although it is a really good piece of software, it can be time-consuming to learn how to use but after mastered it will be the perfect tool to use.
Website- Blender free 3D animation software
Download- Blender 2.46

Do you have trouble keeping up to date with all of your applications, widgets, application plugins and prefernce panes that are installed on your Mac? Then you should try out AppFresh. AppFresh is a program that works by checking osx.iusethis.com for new versions of the software you use then lets you download and install the updates in an easily way. And if you have a iusethis.com profile, AppFresh lets you control which applications it contains. Most software that is used for a Mac doesn't include any kind of update checker. It integrates the most common update checking technologies such as Apple Software Update, Sparkle, Microsoft AutoUpdate, Adobe Update, osx.iusethis.com and much much more. AppFresh helps you keep your Mac updated with the latest software revisions.
Website: AppFresh
Download: AppFresh 0.8.2

xplorer2 lite version is a less powerful version of xplorer professional but it shares the same desktop browsing and file management engine along with dual panes and folder tabs. It will give any file manager a run for its money. This unique file manager is really easy and comfortable to use. This version of xplorer2 might not be as good as the professional version but if your looking for something to help you stop using your Windows file manager then try this free file manager out. The free version is unsupported but you can still post your issues in the forum and you will have assistance come your way. Forums for the free file manager
Website: xplorer2 lite
Download: xplorer2 lite

Fire 1.5 is now available. Fire is a free instant messaging client for Mac OS X that supports AIM, ICQ, irc, Jabber, Google Talk, Apple iChat Server, MSN, Yahoo! Messenger, and Apple Bonjour. Some of the features that Fire includes is Rendezvous chat, Tabbed Chat windows, and styled text chat.
Read more about Fire IM Client for Mac OS X

Or Download Fire 1.5 IM Client for Mac OS X

If you want a site to find a lot of free software that is very useful then check out Shock Utility. The Shock Utility website offers many different pieces of software. Some of the programs that they have at this moment that grabbed my attention is Shock Dropper, Shock StartUp, Shock Calendar, and Shock Cleaner. There are many utilities on the Shock Utility web site that increases the computer users experience. The developers at Shock Utility are always coming out with new software and utilities so keep checking back with them for new programs.
Website: Shock Utility

If you like to use 3rd party msstyle themes and use un-signed custom visual styles or want to check them out and add them to your Windows computer then check out UXTheme MultiPatcher. This patch changes your uxtheme.dll and allows for the use of any 3rd party msstyle theme on Windows Xp/SP1/Sp2 or Windows Server 2003. To patch the UXTheme file all you have to do is run the program and it will determine the operating system, then patch the right file and reboot the PC. If you want to un-patch the UXTheme then just run the program again and it will un-patch the .dll file that was changed and reboot the PC again. It is a really simple program to use and is great for the people that want to change the look of there computer.

Visit Softpedia's website to find more information and download the application
UXTheme Multi-patcher 6.0

Taskbar Shuffle is a free program that lets you re-arrange your taskbar buttons and system tray icons. It is a simple program to use, very small, and is a free utility program. Reorder your taskbar buttons by dragging and dropping them, Reorder your tray icons in the same way, Reorder tasks in a grouped button's popup menu in the same way, Middle-click to close programs on your taskbar, Works with UltraMon taskbars, and Tweak taskbar button grouping. If you are a power user then this is the perfect free application for you. More Info or Download with Installer or with out installer

Are you still using Windows XP and don't want to upgrade to Vista? Or are you using Vista and want a better start menu. Well the free program Vista Start Menu gives you the feel of Vista's Start Menu but adds a lot more features and customization. It lets you instantly find what program you are looking for. It is easy for a beginner to use and easier for advanced users to get used to. Vista Start Menu is a great alternative to the old Windows XP and the new Windows Vista start menu. Want to learn more about this free alternative to Windows Start Menu? Try it out and let me know how it works for you. It works on Windows NT, 2000, 2003, XP, and Vista.

Proteus is a multi-protocol instant messaging program for Mac users. So you don't have multiple IM programs open at the same time Proteus enables you to easily log into all of your instant message accounts and chat with one simple to use program. The user interface is very user friendly and looks like it belongs on a MAC. It supports AIM, MSN, Yahoo, ICQ, Jabber, iChat, Rendezvous, Gadu Gadu, and Sametime. The developers are constantly adding more to this list so be sure to check if your favorite chat networks are supported. Proteus also supports file transfers through MSN, Yahoo, Aim, and Jabber and is also currently being worked on in future versions. Learn about this program(Free Mac Instant message program)or download Proteus and stay in contact with your friends and family.

Links to similar free software like Protues

• Adium X
  
• Camfrom
  
• Pidgin
  
• Digsby