I have a Intel Q6600 2.4gig and motherboard on order and also have a 8800 GTX that will be apart of the system when it is finshed. I need to know if a 600 watt quad rail 18A per rail will be able to power all this. I have the 8 pin EPS on the power supply and the board also has that connector. I am not running SLI and only have 2 ATA hard drives in the case. Please advise