^^ well if you've read any of this thread

You would know!

No really... 4.05ghz or 1800mhz FSB should be easily attainable with your set-up. You really wont put much effort into a 4ghz overclock. I've been having problems at around 45mins of stress testing that I think voltage can fix but I dont see it in any other day to day use. I also was able to boot and complete 3dmark06 at 4.5ghz or 2000mhz fsb. That gave me a killer score too!

I bought mine from tigerdirect for 229.