Cool Open Source Software for Windows
OpenOffice - Office suite - word processor, spreadsheet, etc.
The 2.0 version (beta at this writing) is much improved, with great Microsoft Office compatibility.
AbiWord - Word processor
Dia - Diagram editor, like Visio
Firefox - A better web browser, recommended by The Wall Street Journal, Forbes, USA Today, etc.
The Gimp - The GNU Image Manipulation Program
Blender - 3D creation suite
Audacity - Audio editor
Celestia - Real-time space simulation
FreeCiv - Reimplementation of the classic game Civilization
MAME - Multiple Arcade Machine Emulator - play classic console games
Tux Racer - Penguin racing game
Maelstrom - Asteroids, only cooler
Filezilla - Graphical FTP client
7-Zip - Compression, great replacement for WinZip
CDex - CD ripper to convert your music to ogg or mp3 format
GAIM - Instant Messenger that handles all the main protocols- AIM, MSN, Yahoo, ICQ, etc.
Contact Bill.
My PGP key.