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
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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.