My main goal is gold through 5 mans, I'll be going 4 warriors & a priest. I think mages will be extremely fun and fast, if not faster...

Farming strat live for Righteous orbs or Scholomance for Dark Runes are great early in demand items, at the same time you are getting stacks of runecloth which people want for rep/professions, depending on price you can disenchant the boss drops or vendor them for plenty as well..

Comp may change but I don't really see the need to think about naxx trash farming when its over a year away