Heh, I was all set to come in here and ask what your 40th toon's spec would be as it would be the only one that mattered after 39 arcane explosions went off.

Armory Eenie on Turalyon(US) and Donblanco on Magtheridon for the general specs I like using. I think they're pretty close to the same. I've had pretty good luck in their crappy gear. I tried frost on one of the 4 and on all 4 and was wholly unimpressed. Before the change where a crit would break frost nova/frostbite, they were hell on wheels. After the change, you only get one, maybe 2 to crit before the root breaks, which is less than useful. With fire, you're not dependent on roots.