Upgrades

Hardware Upgrade Sites:
Crucial Technologies [Memory, Flash Cards, and Video]

Software Update Sites:
Windows Update [Windows Update Website]
DriverGuide.com [Drivers]

Tech Utilities:
Grisoft.com [Free AVG Anti-Virus]
LavaSoft [Anti-Spyware & Utilities]
Belarc.com [Hardware & OS Detector]
MajorGeeks.com [Utility & Testing]
WinGuides.com [Registry Tweeker]