'I looked around on the internet and compared them and found that my CPUMarks were very low against less powerful PC's than mine :O'
he did say that though suggesting he might not be showing off :P
Ah sorry, got a bit confused when you said PCI, and realise you mean PCI-Express.
Hmm, I wouldn't know really.
I have the same specs, except for vid card and mem (Radeon 9800 pro, 1024MB RAM) and I get 1500 or something on 3DMark 05.
There is a thread about 3dmark 05 scores on this forum in sticky (at the top) that might give you some ideas