Minimum salary to buy a house and not get laughed at by the bank?

I know it depends on area/how much you want to spend/how your credit stands/etc. BUT! I know there are great programs out there for first-time buyers and at 24 I work part time (a LOT) and probably only make 15,000 a year. I have great credit though since 1999, and some money in savings for a downpayment, that kind of thing.

I just want a tiny condo, because rent is just a heartbreaker. I realize it may not be time yet though.