I've been accepted to two schools to date. One school has offered me a funding package that about covers tuition, but it's in a city with a really high cost of living. The other school says I have to accept their offer in order to apply for a TA position, but that I will most likely be funded. The deadline for that school is rapidly nearing. I think I should accept their offer, but if they don't give me any funding, then I may need to back out down the road. What do people think about this strategy? I don't really want to back out of a commitment, but I'm a poor artist and need to accept the best (financial) offer I'm given.