I might get flamed for this... But i like to use and suggest powerful single GPU's over 2X midrange GPU's.
SLI And crossfireX should be done if you know the games you have will benifet from them...
No thats the best advise. SLI is good when you have top end card and cannot go any further (LOL then the next release comes). SLI scales very well nowaday compared to the old days.
Edited by Drdeath, 17 April 2012 - 11:25 PM.