I looking into a psu that could handle a Q6600 oc to 3ghz with a 8800 GTS 320mb (But possibility to change for GTX) with 2 Hard drive, Nine Hundred case ( 4 fan 120mm, 1 fan 200mm) is 600w(withou gtx possibility) will be enought or 700w is needed. What brand should i choose and near 100$ range. At the moment i have a 500w Ultra modular psu. I just ordered the q6600 but i need to change the psu i think because my psu doesn't have the 8 pin cpu. Thanks for any help.