I'm thinking that a single core P4 @ 6ghz could come close to the 6300.
The FSB thing is overrated, for typical desktop applications.
Just look at Merom Vs Conroe benchmarks...
If you want to save money the E6400 is a great processor. Sure the E6600 is better but you can save a lot money and you won't even notice the difference. Trust me. Even if you do, they overclock great. I'd recomment you go with the E6400.The E6400 has a multiplier of 8 with 2mb of cache. What would the E6600 have for a multiple and is having the 4 mb cache worth the extra money to purchase this? I would like my computer to be able to play the lastest games and simulators. Some games out there require alot of processor speed to run and I don't want to just get by.