This just came out today: http://www.toontrack.com/products.asp?item=119
I've been lucky enough to have had access to this for a while now, and it is easily the best sounding out-of-the-box metal drum sound I've ever heard, I can't recommend it highly enough.
I've been sneakily using it on some recent productions of mine, including this demo in which the ONLY thing I did to the kit sound was blend 30% of another snare sample in there. Zero processing, not even any levelling:
Got this email today, can't wait to check it out.