You could also join a flying club in your area. This is a link which will list the flying clubs in your area. I have never joined one but they seem like a good idea. They can be small (ex. 1 plane 5-10 members) or some of them have a few planes and a good sized membership. From what I have seen it is normally something like $1500 to join but you get that back when you leave and the rates are normally lower than at an typical flight school.

Flying-Club.org - A Directory of Nonprofit Flying Clubs