how many cores does clod use

[jayrc]

wanting to upgrade so bad, I don't want to buy something then regret it, right now I'm trying to decide on the i5 2500k or the amd 6 core. If Clod is going to use 6 cores should I go with the amd? I don't have an unlimited budget. I was actually thinking of spending 300 on a 5850 gpu and corsair tx 750 psu for now till prices on everything else drops and some definite answers as to what hardware works best. Would like to hear from as many people as possible, this will be my first build and I really need some advice