Im currently running a 9800GX2 and its great, having no issues. I just have a tiny weiner so feel the need to compensate 
I got an SLI capable mobo and PSU.
2x GTX275 - http://www.overclockers.co.uk/showproduct.php?prodid=GX-088-BG&groupid=701&catid=56&subcat=1410 for £304-£360
or add another 9800GX2 which I have available to me for £170
Quad SLI would be pretty e-peenish.
Im not sure I will go through with it, just wanting to scope things out atm.
Whats your opinion on performace gains ?
(i know all about DX11, its my money let me be as reckless as i want
)

I got an SLI capable mobo and PSU.
2x GTX275 - http://www.overclockers.co.uk/showproduct.php?prodid=GX-088-BG&groupid=701&catid=56&subcat=1410 for £304-£360
or add another 9800GX2 which I have available to me for £170
Quad SLI would be pretty e-peenish.
Im not sure I will go through with it, just wanting to scope things out atm.
Whats your opinion on performace gains ?
(i know all about DX11, its my money let me be as reckless as i want
