Distro
Gentoo - suitable for everything -
www.gentoo.org
Other Applications
Audio Player - XMMS -http://www.xmms.org
Video Player - MPlayer -
http://mp.dev.hu/homepage/design6/news.html
Email Client - Evolution 1.4 -http://www.ximian.org/products/evolution/
Office Suite - OpenOffice 1.1 beta -http://www.openoffice.org
Browser - Mozilla -http://www.mozilla.org
Window Manager - XFCE -http://www.xfce.org
Terminal - Eterm -http://www.eterm.org
Text Editor - Vim -http://www.vim.org
System Monitor - GKrellm -http://www.gkrellm.net
Games
Frozen Bubble -http://www.frozenbubble.org - Bust a Move Clone
Lbreakout2 -http://lgames.sourceforge.net/index.php?project=LBreakout2 - Breakout Clone
Unreal Tournament 2003 -http://www.unrealtournament2003.com/news.php - Everybodies favourite
If I think of any more I will add them.
[EDIT] There seems to be something wrong adding URLs.