Im new to the site but not to wow lol. Ret is usually the best way to level since your starting from scratch it sounds like. Its pretty easy to swap from ret to tank not alot of move changing. Paladin healing isnt really the best class you'd want to learn to heal with for that id go with a shaman,monk, priest. for making gold and what not dont worry about it because it comes with time just keep grinding out the levels by doing questing and dungeons. make sure you do your dungeon quests they will give you levels worth of xp most the time now. Professions you can do a few different ways. level them up as you go in theory is the best way but gl with that. the best way to do it is grab herbing and mining right off the bat and just use those as your professions till 90. reason i say this is because you will gain xp for ever herb and ore grabbed. Also an added bonus of selling those on the AH to get your gold flow building. hope that was a little bit of help hit me up if you have any other questions.