I spec'd my mage "survival" which is arcane/frost. The idea being I'd never run out of mana. My problem, aside from still dying, was the sheer bordom of the play-style.

I also like my shadow priest quite a bit, but right now my "main alt" is the rogue. I want to push 2 characters to 70 so I can rake in disgusting amounts of cash prior to WotLK.