Looks decent. I'd push the PC a bit harder - to 3.3 GHz perhaps.
Sure, your physics score is much lower than someone with the latest CPU, but you cannot really detect hard bottlenecks in 3D mark. I'd suggest running some demanding games and seeing what performance you get for yourself
I have a G41 mobo and i cant change the vcore at all and C2Q hasnt really got an unlocked multiplier so id have to change FSB, but the highest i can get to, stable and booting is 399*7.5=2.99Ghz; go 400*7.5 and it doesnt boot.
And the bottleneck issue, i dont actually truly know what i need to look for to have a 'bottleneck'. The latest game i have taht demanding is BF3, and even on High-Extreme all settings 1080p the CPU copes well.