Im planning an Intel Core i7 920 build but there was a couple pieces of equipment i'd like you experts to review.

First is :
Corsair XMS3 Dominator w/DHX technology x 12gb
(what exactly is DHX and is it really usefull)

And second :
NVIDIA GeForce GTX 295 1792MB
(how well does the card hold up to possibly running five instances of WoW on two monitors)

Thanks again for your continued support