What SLI mobo?

I've just got back off holiday and am readyish for a new build, this sluggish old system is getting on my tits. I am looking towards A64 3200, 1Gb RAM, 6600GT, Tagan 480 and case sufficient to take water cooling but what M/B?
I want to paly games and record acoustic music (hence W/C) so am thinking of MSI Platinum so that I can SLI the card later.
Any thoughts?

DFI ?? I'm using an Ultra one, but heard the SLI rocks.

Second for the DFI, think there are 2 SLI ones, if u want the best then go for the more expensive one, simple :)