Trylofer wrote:
Also, get a wand if you are able to. I don't think I got one until around L15. Made a world of difference as far as saving mana for heals.
Agreed.
Wands are great because they use no mana, and don't need any ammo. As a priest, get a good wand (from the AH if necessary).
Take up some gathering professions as soon as you get to a major city. I'd suggest mining and skinning to start. You can always change later. Sell everything you gather at the AH and you will have the money for all your skills, your mount, and that good wand.
Other than the wand, while leveling, just use gear you get off drops and quests. There is no need for a leveling priest to be buying a lot of gear at the AH. You will just out level it and waste a lot of cash.