Another +1 for the G33-DSR2 and it's later revision the S2. Had both, currently got a DSR2 as the S2 died in a freak BIOS flashing incident.
If you do decided to OC then you'll get a decent FSB out of both, just need to make sure there's ample air flow in the case as the NB gets rather toasty. Took an e2160 to 3.2ghz, an e6600 to 3.6, and an e8400 to near as damn 3.8. Had a q6600 up to 3.2 but it was an average chip IMO.