I'm a lvl 40 destro specced lock. I'm at the point where I'm ready to drop my second gathering prof (skinning) and pick up a craft. Which prof would offer the greatest net gain as a warlock? Like, is there some sweet gear that I can only get if I craft it through tailoring? Or am I better off picking something that will make gold and then buying my gear in the AH?
Basically I'm torn between Tailoring, Engineering, and Enchanting. I know the latter two are gold-sinks until you lvl them, but I've saved up a lil nest egg for just that purpose and I hear they get you pretty good money once you're skilled enough.
Any recommendations would be helpful. This is my first character, so I don't really know anything about higher lvl gear or high lvl professions.