We'll be honest with you, we thought the GTX 480 was finally a graphics core too damn large and power-hungry to get the dual-GPU treatment. ASUS, however, is making us think again. Imagery has emerged of a Mars 2 (or II, if you're into outdated numbering schemes) reference board that fits two 480s on its densely populated surface, and is fed by not one, not two, but three 8-pin auxiliary power connectors. Back when Galaxy showed off a