VNC - controll your computer from a remote location
http://www.realvnc.com

Miranda - messenger service that works with ICQ, AIM, MSN, Jabber, Yahoo, Gadu-Gadu, Tlen, Netsend and others simontaneously.
http://www.miranda-im.org

Picophone - IP telephone
http://www.vitez.it/picophone

RJH Extensions - Enables you to edit your "right-klick" menu
http://www.rjhsoftware.com/rjhextensions

Riva Tuner - overclocking
http://www.guru3d.com

SoftFSB - overclocking
http://www.voodoofiles.com/250

BIOS Wizard - BIOS analyzer
http://www.motherboards.org

GSPOT - codec identifyer
http://www.headbands.com/gspot

VDMSound - soundcard emulator (for your nintendo games)
http://www.ntvdm.cjb.net

Eraser - "kill" files instead of deleting (good for when the RIAA is at you front porch)
http://www.heidi.ie/eraser

Resource Hacker - Hack windows files to change logo's etc
http://www.users.on.net/~johnson/resourcehacker

NTFS Reader - Read NTFS partitions without having windows 2000 or XP installed
http://ntfs.com

HijackThis - shows which files on your pc can be spyware
http://www.spychecker.com/program/hijackthis.html

DVD Shrink - Copy DVD's
http://www.dvdshrink.info

Find Junk Files - clean up your pc
http://www.iclaxton.com/findjunkfiles.html