Since it is your main character, it would be best to pick up two gathering professions, like skinning and herbalism. Picking up two gathering professions will yeild more profit for you.
I picked up herbalism and alchemy because mana potions are helpful, along with some other potions. Also, you can sell plants on the Auction House, along with the high level potions you can create.
Edited, Jan 14th 2007 1:25am by lpadirn