Came across this and decided to give it a whirl :P

It tests your CPU, RAM, 2D GFX, 3D GFX, HDD and (odly) your CD/DVD

Test Suite / Weighting
Disk 20%
CD / DVD 9%
Memory 18%
3D Graphics 12%
2D Graphics 14%
CPU 27%
Total 100%

You can run the tests individually or the full suite for an overall score

You can download it from :

http://www.passmark.com/products/pt.htm

If we get enough interest ill start a chart