HP Pavilion BV530AA P6710 Desktop PC - AMD Athlon II X4 640 3.0 GHz Processor - 4 GB RAM - 1 TB Hard Drive - Windows 7 Home Premium 64-bit Edition - Black - $287.49 w/ FS
A 7750 that does not require a 6-pin external power. One that gets good reviews and is quiet / has a big fan. There is a slight premium on these so its gonna be about $110.
Total $400. See slickdeals for the computer. It says the HP machine has a pciE slot but I would verify this before ordering.
Thanks I will recommend the HP and see what he says but I think he wants to go custom built instead of off the shelf. I was looking around newegg and other sites and this is what I came up with:
Antec One $50
Core i3 2120 $125
Asrock Z77 Pro4 $109
XFX 7770 DD $119
Antec Earthwatts Green 450 $49
Hyper 212 EVO $30 (OC the i3 to get a little bit more out of it)
Samsung 8GB kit $47 (want for very low profile and good oc capability)
Crucial M4 128GB $120 (I have some old sata2 hdds lying around I can give him for time being for storage)
Total: $649