PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard 500W (or greater) power supply with one 75W 6-pin PCI Express power connector recommended
600W power supply (or greater) with four 75W 6-pin PCI Express power connectors recommended for AMD CrossFire™ technology.
Certified power supplies are recommended. Refer to http://ati.amd.com/certifiedPSU for a list of Certified products
Minimum 4GB of system memory
I say let him get the antect psu I picked, he'll have enough juice to get him running and if he decides to oc a little bit.