This site currently offers you the following software:

TweakBIOS
The Ultimate Configuration Utility! This program let's you squeeze out the last drop of performance from your PC. It let's you change all the settings your BIOS menu lacks.

PCI-Info
This small utility lists your PCI devices, and some information on them. This latest version also supports AGP devices!

Also, you might want to download a few good benchmark programs. After that you can visit some of the best hardware related web sites.