You do realise that even 2 x8800gt graphic cards struggle to play crysis at the native res of most 20"+ monitors? There is a new nvidia card based on G92 coming shortly and the ATI Dual Core 3870x2.

A single 8800GT runs crysis at 6.5 frames per second at 1600x1200 with the quality set to high, note there is two quality levels above this!

It may be worth waiting a tad to see whats going on as you could end up wasting a lot of money on the wrong graphic card.

Use this link for Sli/Crossfire Q&A
http://www.tomshardware.co.uk/forum/...crossfire-faqs

What about this mobo, has all the features you need bar the built in wireless and is future proof with 45nm support.