http://www.asus.com/products/mb/socket939/...d/overview.htm#
And sure you need two cards that are the same. But then, if your investing, do it right

Hardware prices are always on the decline so waiting will always pay off, unless you want the top-of-the-edge stuff... If you check the specs on the ASUS-board above, you'll see:
Quote:
- 2 x PCI Express x16 slot
*SLI mode : x8 , x8
*Default(Single VGA) mode : x16, x1
- 2 x PCI Express x1
- 3 x PCI
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Hubba hubba... only this board 'll cost you at least EUR 149... but it's well worth it with the firewire, RAID, 1 Gbit LAN and onboard 8-channel audio... if I had the mony right now... I'd certainly buy it!
Disclaimer: I'm not associated with ASUS in any way