A suped up non-reference GTX 480 has been sighted from ZOTAC which will take top spot in its popular AMP! Edition line-up of overclocked graphics cards.
Upon first glance the massive aftermarket cooling solution stands out. This is Zalman's VF3000 GPU cooler which will take up three expansion slots and should do a good job of combating the extra heat while keeping the card stable with its overclocked clock rates of 750MHz core, 1512MHz shader and 3800MHz memory (stock being 700/1401/3700MHz).
We're yet to hear of a price or when it'll become available.