Here is a partial list of application I have on my PC which proved useful to me. Will update with links pretty soon... and will update this from time to time.

General

• Firefox
• FileZilla
• Download Accelerator Plus (and trying Video Accelerator too lately)
• TimeSnapper Pro
• Diskeeper Pro Premier
• Ad-Aware (Free) - getting a lot of errors/ i feel some memory slowdown
• Spybot S&D (Free)
• Windows Defender
• Zone Alarm (just turned Pro)
• HiJackThis (Trend Micro)
• RSSReader - using iGoogle/GoogleReader
• TuneUp Utilities 2007
• PrimoPDF
• SnagIt 8
• FastFolders

Dev Tools

• Reflector
• SmartSVN
• Resharper (NEW) - currently evaluating
• SQL Database Publishing Wizard
  
• DbgView (sysinternals)
• Process Monitor (sysinternals)
• Process Explorer (sysinternals)
• IECookiesView (nirsoft)
• TcpView (sysinternals)
• IIS Resource Kit
• IIS Diagnostics Kit
• FileZilla 3.0
• Fiddler2
• MBSA 2.0.1
• Virtual PC 2007