Listed below are all of the free application that i am currently using as of date published. Provided below are the names of the application and/or brief discription. Note there is not order of the applications, just as they are ordered in my Applications folder.
Applications:
1. Adium - IM
2. Armagetron Advanced - Car Game
3. Atmosphir - Build Your Own Adventure Game
4. Adwaken (not free) - Alarm Clock
5. Blender - 3D software
6. Camtwist - Add effects to videos/live streaming
7. ClamXav - Mac anti-virus (no comment:D)
8. Colloquy - IRC Client
9. Evernote - Upload media to the web for storage
10. Firefox- Internet Browser
11. Flip4Mac - Watch WMV items
12. Flock - Internet Browser
13. Gimp - Low end Photoshop alternative
14. Google Desktop - Search anything on your computer
15. Google Earth - View any place on the earth
16. Google Sketch Up - 3D modeling
17. Handbreak - Rip DVDs
18. iShowu HD Pro - (not free) record desktop
19. iTunes - music/video player
20. Jing Project - Desktop snapshots
21. MainMenu - Speed Up your Mac
22. MSN - Microsoft Messenger IM
23. Oxidizer - Create 1 of a kind wallpapers
24. QuickTime - View pictures and videos
25. Quicksilver - Power users God, open thing without touching mouse
26. Safari - Apple internet browser
27. ScreenFlow - (not free) Screen recorder
28. Skype - Free/not free VOIP (Voice over internet protocol)
29. Twitterific - Twitter updater client