Browser: Chrome, FirefoxPortable&Tor
Extensions: 4chan 4chrome, AdBlock, FastestChrome, Google Mail Checker
E-mail: Gmail
Office: OpenOffice
RSS: None
Security/Maintenance: Spybot S&D, Comodo, Avast!, CCleaner, Defraggler
Media: iTunes, MPC, CS5 Master Suite, Irfanview
Social: Facebook, MirandaIM
Games: SC, Cryostasis, Fallout 3, Oblivion, Crysis, CoD4, CoD2, KotoR, KotoR2, Mass Effect, Mass Effect 2, Metro 2033, America's Army 3, Portal, Street Fighter IV, Sins of a Solar Empire, Sins of a Solar Empire Entrench, Rome Total War, Morrowind, probably more I haven't got around to installing/finding.
Other: inbefore404, xchan dumper, Teamviewer, Prime95, CPU-Z, uTorrent
None.