(I'm pretty tipsy at the moment due to some fun antibiotics, so if what I say doesn't make the greatest of sense I will try to reiterate it) I've been comparing the (G92) 88000 GTS 512 MB, Radeon HD 3870's (2x), and the new bad boy: 3870 X2 -- I just can't decide what would be the best card(s) for m...