Windows XP Tweaking Companion Version 1.05 @ TweakGuides
Your tweaking friend.

Corsair XMS Xpert 1GB PC3200 (TWINXP1024-3200XL) @ Bjorn3D
Fancy RAM.

Intel Dual Core: Multi-Tasking Benchmarking @ Legit Reviews
Do lots of stuff at once.

Graphic Cards 101 - A beginner's quickguide @ amdgamer
What you need to know.

Asus Extreme N6600TOP/TD/128M/A Videocard @ PC Stats
It's got "extreme" in the name, so it's bound to be fast.

Coolermaster Aquagate Mini water cooling kit @ PCUnleash
Very mini.

Gigabyte GV-RX80256D X800 Turbo Silent Pipe @ HotHardware
Fast, yet silent.

Patriot DDR400 2-2-2/DDR533 3-4-4 @ Anandtech
"Performance AND Value".

ATI All-In-Wonder X800 XT @ Beyond3D
All-In-Wonderful?

3 Digital TV Cards @ Walibe
For those who watch a lot of telly.