My favorite freeware, taken from a somewhat similar thread:
In alphabetic order:
*
7zX -> 7-Zip frontend. Compressing/decompressing files
*
Adium -> Multi-protocol instant messaging client
*
Camino -> Web browser. Running Mozillas Gecko rendering engine, as Firefox and others.
*
Colloquy -> IRC client
*
Max -> Audio CD ripper and converter
*
Meteorologist -> Weather program for the menu bar
*
Monolingual -> Remove language resources from Mac OS X
*
OpenOffice.org -> Office suite
*
Seashore -> Image editor
*
SimplyBurns -> CD/DVD ripper and burner.
*
Smultron -> Text editor
*
Transmission -> BitTorrent client
*
VLC -> Audio/video playback client
*
Xcode Tools - Apple's software development tool