The PSU I'm thinking of is a 950 W one by PC Power & Cooling: http://www.newegg.com/Product/Product.aspx?Item=N82E16817703028
And the motherboard has 3x PCI 16x slots: http://www.newegg.com/Product/Product.aspx?Item=N82E16813157207
The rest of the system isn't really as relevant for mining purposes, but will include a hard drive, an optical drive, a pretty good AMD processor, and 8 GiB RAM.
So, the main question is, assuming I stick it all in a case with enough fans, is the PSU going to be sufficient to power those three video cards along with everything else? Is the motherboard going to take it? Can Windows 7 handle this? Is there anything I haven't considered that I should think about? (Dummy plugs?)
Thanks guys!
http://forum.bitcoin.org/index.php?topic=9674.0