If you have the guts and a few thousand dollars, why wait for Apple to release it?
http://www.hardmac.com/articles/70/
http://www.hardmac.com/articles/70/
As a fellow poster said when asked about the need of an octo-core Pro: "What do you need it for? Planetary simulation?".
The Mac Pro is stupifyingly powerful, and upgrading it hardwarewise won't hardly be noticeable until the software follows with it.
VMWare Fusion(or Parallels) would eat up those cores and RAM easily.
Of course i run planetary simulations in my sleep... Muahahahaaaa...
You too?