I hit level 70 and buying my flying mount, I watned to spend more time in the Outlands and The Burning Crusade and learn where the best drops and best grinding spots are.
If you are new to the Outland, I can tell you now that it is the place to get some of the best drops in WoW, motes are great and if you farm the correct spots, you can easily pick up a couple primals an hour which sell for good amounts of gold.