GTX260 1792MB in SLI??

Yes, and any motherboard that supports SLI should work.

Oh Ok, is there a specific one that is good?

There so many flavors of the GTX260 and so many flavors of SLI Motherboards. It's really difficult to say which is best. I like MSI products but i've seen a lot of people buying EVGA.

I'm running an older SLI MB, MSI-P6N SLI FI and 2x GTX275's from BFG... So far so good....

It's really up to you as to which manufacturer you want to go with...

AJ

Thanks AJ, i was wondering if the SLI performance would go down a lot, since i can only find 896mb 260gtx's and not 1792mb like the one ive got  

Unfortunately you will lose that extra memory with and 896 card... As far as performance, I have no idea what it'd equate to

there aint any performance difference between the 896 and 1792 mb versions @1920x1200 and lower