Software that you need!

BitComet
Photoshop
Sony Vegas
Firefox
Steam

I'm just going on memory on what I install after a reformat, or on a fresh install....

MSE
Opera
CCleaner
My printer
7zip

Obviously my mail client, since I don't like any web-based mail.

WLM these days.

Opera.
Grooveshark.
Notepad. Not ++, but that might be helpful.
Litestep.
Ad Muncher.
WinRAR.
Gimp.

Microsoft Office
uTorrent
Microsoft Security Essentials
Windows Live Messenger
Internet Explorer
Opera
Windows Media Player
SimCity 4 (a game, but I really need it)
Microsoft FrontPage
Adobe InDesign
Paint.NET

Edit: Forgot Daemon Tools and Nero.

NoGoodNamesLeft (great name btw), Notepad++ - Wikipedia, the free encyclopedia

As pparks said, their is nothing I can't do without, but I do have certain software I prefer to use over others of its kind.

Format Factory
MSE
Microsoft Office
Chrome
Audacity
WLMM

My most important programs are:
-Firefox
-Skype
-Dropbox
-Steam
-WMP or iTunes
-Adobe Photoshop
-Teamviewer


Less important, but still needed:
-VLC
-7z
-ImgBurn
-MS Office