im building one right now;
AMD Phenom II 560 4 core 3,4ghz ( 6x is sloppy except for video edits per tomshardware)
corsair gamebuster 650 tx power supply
geforce 550 ti 2 gb ram crossfired ddr 5
32 gb ram corsair vengence ddr 3 dual 1600
seagate barracuda 1 tb 7200 rpm HDD
sony 12x blu ray burner with 3D playback
should be able to run bf3 or the like at ultra settings at about 60-75 fps for 700 bucks wholesale.
need to add some fans and cooling tho.
MUBO for this beast is here:
http://www.tigerdirect.com/applicati...Z3di2H4bgmxJBw