[Aesgir]

I'd say at the moment its a waste. Not enough games have reliable SLI support, and until the software catches up there's no real need to go SLI. I've left my set up open to go SLI in future when i moved to 64 bit, which i felt was worth beating the software for the tangible benefit of more RAM. Unless you REALLY can't bear to play games in anything less than 1920x1200 resolution with everything on high (i manage just fine with one 8800 GT on 1680x1050) then it'd seem like throwing money away to me.