AVG - Anti-virus

Scanner
This tool uses a unique concentric pie chart to display the usage of your hard disk or other media. The chart shows all major files and folders from all directory levels at once.

AP Guitar Tuner

DX-Ball - a very addictive "breakout" type game

Ad-Aware - removes spyware

Spybot - Search & Destroy - removes spyware

Zone Alarm - firewall

Firefox - web browser

Flashblock - blocks Flash animations (usually ads) unless you WANT to see them

Terminal v1.9b - Terminal program [screenshot]. If that link doesn't work, try this one (right click)

Encoder Design 12 - Makes encoder wheels. Highly configurable