Compatible except the RAM. That triple channel RAM (3 x 4GB) is made for the Intel X58 system.
For this, you wanna go with a dual channel kit or kits.
2 x 4GB = 8GB,
2 x 8GB = 16GB,
2 sets of 2 x 4GB = 16GB
4 x 4GB = 16GB,
2 x 4GB PLUS 2 x 2GB for 12GB.
DDR3 1600 and 1.5V (not 1.65V) is the sweet spot to shoot right now, for instance these.
The Antec BP PSU is not a bad PSU at all. But if you want something sturdy for a long-term, I'd go with the Seasonic 520W which should come out to be able the same price after the shipping charges of the two PSUs are considered. Just me.
i7-2600k @4.5GHz, Scythe Mugen 2 Rev. B, 8GB DDR3 1600, GIGABYTE Z68XP-UD3P, GeForce 9500GT, PC P&C 610W, Plextor M3 128GB, Hitachi GST 7K3000 x2 & WD Black, ASUS DVD & LG Blu-ray Burners, Win7 Pro x64, CM 932 Case.
HTPC + Media Server: http://www.eggxpert.com/forums/permalink/5855/836221/ShowThread.aspx#836221