Definitely check these out!
Quicksilver - Quick Launcher (Free)
AppZapper - Application Remover (Shareware)
ClamXav - Anti-Virus software (Free)
Firefox - Web Browser (Free)
Onyx - Multifunction Utility (Free)
The Unarchiver - File Extractor (Free)
Xslimmer - Application Slimmer (Shareware)
Perian - Video Support For QuickTime (Free)
Growl - Notifier (Free)
Transmission - Torrent Downloader (Free)
VLC - Video Player (Free)
NetNewsWire - RSS Reader (Free)
Adium - Instant Messenger (Free)
Quicksilver - Quick Launcher (Free)
AppZapper - Application Remover (Shareware)
ClamXav - Anti-Virus software (Free)
Firefox - Web Browser (Free)
Onyx - Multifunction Utility (Free)
The Unarchiver - File Extractor (Free)
Xslimmer - Application Slimmer (Shareware)
Perian - Video Support For QuickTime (Free)
Growl - Notifier (Free)
Transmission - Torrent Downloader (Free)
VLC - Video Player (Free)
NetNewsWire - RSS Reader (Free)
Adium - Instant Messenger (Free)