probably not Kev, but at the time it was cheaper to buy two 8600s than one 8800. The motherboard I bought has equal bandwidth on the PCI-E buses for each card so there was less chance of bottle necks and I was curious to see it working too if Im totally honest.

I did have some stability issues were it ran Guild Wars at nearly 200 fps but the thing kept crashing - it now runs at a very dull 60 -70 but very stable now. Me deciding on Vista 64 as my operating system of choice probably didn't help my stability issues either.
The likes of ET:Quake Wars runs like a dream - the only time I get slowdown is when I get lag but I'm looking forward to seeing how my pc copes with CoD4. It better run graphics as good as the 360 or I'll be sueing Nividia and AMD - it should be a good test for the system anyhow.
I think you won't have too many problems if you play modern games Kev, but the older ones may not know how to deal with two cards correctly (I guess similar to older games only using one of your processor cores).
Eventually I guess I'll drop two 8800s in there at some point, but not anytime soon
