Hey, I'm doing very well thanks for asking, how're you?
Fisrt of all, Windows experience Index is perhaps the worst "benchmark" ever...Don't pay it any attention.
Secondly Your E8500 is bottlenecking just one card on its own, so adding two won't do anything for your score. A single GTX260 is cacpable of roughly 16-17K without a CPU bottleneck. Its just the way 3DMark06 is, very CPU intensive.
My Core i7 920 at 4.4Ghz still bottlenecks 2 x HD5850's in 3DMark06, but what really matters is games, not benchmarks.
Your CPU really isn't powerful enough for GTX260 SLI. (Although 3dmark makes the bottlenecking look alot worse than it probably is in games.)
That chart is just some BS marketing, they don't even say which games or settings ETC... Besides which I'm talking about 3dMark06, not games....
You will still get very playable frame rates in nearly all games, the only games I see your CPU really struggle on would be BFBC2 on High settings and perhaps Crysis and metro2033. Oh and of course 3DMark, but thats just a benchmark.
I've played BFBC2 and Metro on high settings @ 1680 x 1050! no problem! before the sli configuration!
what i'll do is download FRAPS or any other in-game FPS calculator and check then, comparing differences!
I still can't understand why sli would give me a lower score than single GPU setup! Sure i understand there will be bottlenecking, but heck! there should have been an increase, even just a slight difference!!