Auran Trainz TS2010 --- an awesome train simulator that will make any system glow. Great for testing new hardware.
CutePDF Creator. --- A great way to create PDFs from any printable document. - It's free too.
System Explorer --- Nice Task Manager replacement with other doo-dads added on. Can break out different subprocesses out of svchost, and has remote virus scanning of the different running tasks and services. A great tool for finding malware.
Advanced System Care Pro. --- A little suite of utilities. (The regular version is free. Pro is $20.00 US). Has a nice system clean up and registry cleaner in it. It beats grunging through the registry and temp files when it comes to system clearn-up.
MS Office 2007 Professional
Gimp for image editing --- Freeware photo editor that has most of the functions of PhotoShop, but without the price.
Sunbelt Software Vipre 3.x (Soone to be 4.x). ---- A great antivirus product that has little or no impact on the system when running. Unlike Norton or Trend Micro, which was my former favorite, Vipre's processes are really tiny and it does a decent job. It's pretty inexpensive too.
Diskeeper 2010 Pro-Premiere. Their latest version that handles large hard drives (> 1TB drives).
Search and Replace Master ---- Freeware search tool to edit same text in multiple documents. Great for config files and HTML pages. Can strip code out of HTML pages leaving the text strings behind.

This is pretty much it that resides on my computer at the moment.

John

Adobe photoshop CS4 (Complete home studio) - (9)
Cyberlink Power DVD 10 (Turns your desktop to a theater) - (10)
Internet Download Manager (Download almost everything with ease) - (9)
Kaspersky Internet Security (Best defence) - (9)
EVGA precision (OC with ease) - (9)
CCleaner (Easy clean up) - (9)
Xfire (Gaming simplified) - (10)
Microsoft Visual Studio 2010 (Makes you a pro developer) - (9)

yup...thats it.
These are the sw i use.

Windowsblinds -makes winxp easier on the eyes (9)

iTunes -so my iPod has music/the works, also good organization of library, much better than wmp, unfortunately too resource hogging to use it while gaming, compared to wmp (9)

speedfan -temp monitoring (8)

trillian -a multi-im client software, I can use 1 program instead of installing aim, y!m, google talk, win live, for im'ing people. It looks better than all of them, it supports multiple accounts per connection (ie i can log onto multiple aim accts simultaneously), also has facebook chat and myspace im so I don't have to go to a web browser whenever I need to use chat/won't log off when exiting web browser. It is the eyes and ears of my online social networks (10)

xfire -friends list, and server viewer for many games (8)

avast -free antivirus that is probably the best one out there (9)

winrar -you should know what this does if you don't google it, it is awesomeness (9)

unlocker -program-access management, it "unlocks" programs making it availible to be altered. that was a bad description, google it plox. (8)

thats most of what most others forgot.

1. EVGA E-Leet Utility
2. EVGA Precision
3. Prime95
4. RealTemp
5. Firefox
6. Winrar
7. Quicktime Pro
8. Camtasia Studio
9. VLC
10. Nero Burning Suite
11. CCleaner

MSI Afterburner: For Nvidia and Amd (ATI) graphics card monitor and tuning (9)
CPUID- Checking system Info and validating (10)
ImgBurn: Burning and creating ISO files (10)
Malwarebytes- Excellent anti-malware program (10)
Xbox 360 Drivers for Xbox controller works with most steam games
(10)
Open Office: Free Doc, spread sheet, etc.. and compatible with MS Office (10)
Vantage: Testing and scoring system set up (10)
Prime 95: for testing overclocked systems (10)
OCCT: for testing overclocked systems (8)
Intel Burn Test: Quick Check of overclocking (10)
Firefox: Best wed surfer (10)
Google: best search engine (10)
Panda Cloud Antivirus: Lite on system and nearly invisible (10)
Shark007: Windows media player codecs covers all formats of video (10)
VLC Player: excelent for viewing any format of video (10)
Rocket Dock: for keeping your desktop clean (10)
Linux: Free OS  (8)
CCleaner: for uninstalling programs, registry cleaning, and clearing IE history,cache,etccc..... (10)
Usenext: for downloading files and programs to try before you buy the software. * I dont support piracy just like to be able to try something before spending my hard earned money on a program that will not do what i need it to do.
HTC: for connecting an EVO 2 4G phone to your computer
Steam: for gamimg (10)
 
 
 
 
 
 
 

MS Security Essentials
Steam
EVGA Precision
Daemon Tools
WinRAR

Windows 7 (duh)
World of Warcraft
Chrome
CCleaner
Defraggler
Malwarebytes
Microsoft Security Essentials
HWMonitor
 
Coincidentally, that is my entire program list on this HDD.  Sad I know...

I'm only going to post ones I don't see up there already... 
 
Winamp - media player (10)
yEd Graph Editor - free alternative to MS Visio (10)
Adobe Acrobat Reader / Adobe Acrobat 9 Pro or CutePDF - PDF reader / writer (10)
Teamviewer - remote desktop (10)

Blender,a great modeling,animation,texturing,game engine/design,particles and physics system,UV mapping,and all for free.
gimp,for texturing,photo editing,normal maps,and is free.

Adobe CS5 - best in the biz
Office 2010 professional - Every computer needs office!
CCCP - Video codec pack for wmp
VLC - plays everything!
Utorrent - helps you access torrent media
handbrake - rips dvd's for backing up your movies to video files.