OP:
Several things not mentioned. First of all, if you're paying the fee, find a card with a long intro rate (15 months), so that you get more for your $$ (3%). Also, if you're going to be spending on the card, make sure the intro rate (0%) is on purchases as well. Lastly, if you're watching your credit score, transfer to 2 or more cards so that your utilization is <50%.
Elizmm: What card did you transfer 13g's to with no fee?