Ok so here's my build its not great but gets me by fine in any other game...
AMD Phenom II x6 1045T clocked @ 2997Ghz on all 6 cores, with a good heat-sink and fan that keeps temps @52c under load.
Only a minor overclock but it does help some, plus I've no water-cooler
This is sat in an ASUS M4A77TD PRO motherboard along with 8Gig (2x4) Corsair DDR3 1600.
GPUs are a pair of Sapphire 7770s Ghz edition stock coolers, GPU clock 1100Mhz, Mem clock 1300Mhz, power control is 0% and fan is on Auto.
Temps on the cards don't go above 65c-ish playing for hours.
The HD is an old school Seagate ST3360832AS ATA, might be a bit slow but works fine comes up as 5.9 on the windows index and has plenty of space free.
Power comes from an Ezcool 80+ 800w dual 12v rail PSU.
Fps in 1280x1024 = 45fps start up sequence, 40fps average, dipping to 21-22fps in LRM heaven etc.. compatibleAFRD3D profile.
Fps in 1360x1024 = 65fps start up sequence, 48fps average, dipping to 21-22fps in LRM heaven etc.. compatibleAFRD3D profile.
Fps in 1600x1200 = 65fps start up sequence, 47fps average, dipping to 15-25fps in LRM heaven etc.. compatibleAFRD3D profile.
These results were interesting as everything is set to Very High, Vsync, AA, Damage glow.
When I turned off AA the Fps actually DROPPED 5-10fps !?
Pretty mad hey... Plus it seems not to like any resolution under 1280x1024 for some reason
If your wondering why I've only gone up to 1600x1200 res its because I'm using an old-ish DELL P991 monitor and that is as far as it goes lol...
(note to self buy new monitor)
Hope that helps.