LifeHacker has a list of top 10 Free Mac Downloads.
- QuickSilver
- TextWrangler (You can try Smultron too but if you are serious, then the best would be a commercial text editor – TextMate)
- SilverKeeper (A Backup Utility that is packaged along with Lacie Drives)
- Adium (Instant Messenger)
- HandBrake (DVD Ripper)
- iSquint (video file to iPod converter)
- VirtueDesks (Virtual Desktops Manager)
- The Unarchiver
- VLC MediaPlayer
- iTerm