Oh, and one more thing before the OP's original topic got detoured by the money making talk - you had a question about running heroics. Like many others, my two teams are running heroics daily. But of my 10 level 80 toons, only one has a profession - one of my tanks is an enchanter. So no worries - no matter which professions you select (or don't select), you'll be able to run heroics with no problem.