I skipped alot of the replies so this very well could have been suggested, but when you get to outland initially, id suggest focusing on the quests that immensly upgrade your gear then get out of outlands and back into the plaguelands, do all the quests humanly possible there until 60+ imo then begin running stratholme, you'll get some good money, especially if ur an enchanter/tailor decent experience also, the quests give a nice amount to.

After this you are gonna wanna hit ramparts anbd hit it hard, do your best to have most of your gear replaced already by the time you start with outlands gear, if possible. Ramparts,with some practice, is easy to farm, Also work on farming first boss of BF, or attempt entire thing if you are feeling adventurous at a lower level(it can be frustrating at 2nd boss) i get about 8% of a lvl each first boss run and am working on getting each toon the spelldmg mace from him have 3/5 right now, and almost gained a full lvl doing it, saving alot of quests.

The final boss of ramparts is a pain, the trick is to semi glitch it by pulling the 2 mobs that start the boss event back as far as humanly possible in order for the rider to not chase you as 5x shammies, set up groundings near the beginning of the bridge waste the 2, and the rider stays in the centre of the platform infront. Now you are going to want to slowly progress forward not getting out o range of grounding totems(nazan shoots fire balls every 3-4 seconds grounding absorbs these, they will put some serious hurt on u if u forget this). You can glitch it up in order to atually begin your assault on nazan in the air, he will land at approx. 20% health now u need to nuke him down then possibly get rdy to chain heal your ass off after hes dead as he may have hit you with his aoe which burns like a bitch(wiped me first time but ahnked and killed rider ftw). Rider is cake. GL, you can farm these for quite a bit with little trouble.

Sidenote: Stratholme pulls take a little getting used to, without a shield the hits hurt pretty good but once you are used to the pulls they become easy. Baron runs are fun and relatively easy. Scholomance can be fun but lots of spell dmg immune mobs at certain points. I had no weapon skill took me 20 minutes to kill 2 non elites but got my weapon skill up, windfury weapon helps. The basement sucks tons of spell immunes, but once your weapon skill is up its doable, just not worth the experience, but lets you finish the quest that gets you closer to summoning the gargoyle boss .

I never did DM but heard its really fun.