im currently running to 6970,s with the 1090t overclocked @ 4.1ghz and so far so good .id imagine the 1100t would do it with ease and give a slightly better overclock but with the realease of the bulldozer soon id really wait and see what they have to offer .plus the the realease of the 990 chipset right round the corner you may be better of with one of these setups
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amd fx-8120 powercolor 6970 @890mhz g-skill ripjaw x 1866mhz 16gig asus ch5 2x corsair force 3 ssds in raid (2 x 60g) 2 xwd 500g sata 3 hdds in raid 1.10