I agree with atlSCIP - I think a buying a portion of a partnership would serve you best - you don't have to front the entire cost of the aircraft or the fixed expenses. I haven't looked recently, but there always used to be flyers with shares available when I frequented FBO's. A couple things to be aware of:

1) I would absolutely have a good mechanic do a thorough pre-purchase on the aircraft. You're making a substantial investment, you need to know what condition it's in.

2) Be aware that you may not be able to sell your share immediately when you are ready to get out. This is really no different than owning an aircraft outright yourself.

3) Evaluate your partners - along the lines of #1, are they going to take care of the aircraft? This becomes more of an issue as you move up in complexity and performance. For example: You are the most careful and consciencous pilot out there and baby the engine. You'll still end up footing part of the bill when your partner continually shock cools the turbocharged engine in your SuperDuper Skyblaster.

This is much less of a concern (but still very much a consideration) in a simpler fixed gear, fixed prop trainer like a Warrior, Skyhawk, etc, and an excellent reason to limit your selection to said aircraft - they're also cheaper per hour.