What you will want in a year !
Forget the ATL & C150/152 they will not be what you will want to fly in a years time as your flying horizon expands and any C152 worth owning will be too expensive as it has become the only game in town for those who are not going for the DA40 as a primary trainer.
As you intend to keep it in a hangar have you considered the Robin DR 400 ? It is a very nice aircraft to fly and will lift a lot of weight for the horsepower off a short runway and cruise 10-15 KTS faster than the American equivalent metal aircraft.
For the private user I would look for a DR400-140B ( a 160 HP aircraft without the wing tanks) a DR400-160 or DR400-180. The 140B & 160 are the most economical to run and only give away a few KTS in cruise speed to the 180 but the payload of the 180 is better.
The big problem is that any aircraft that you buy cheap will cost you a fortune in maintenance and a well refurbished aircraft will cost a lot but the maintenance costs are predictable for the next ten years.
I do know of a DR400-140B that is being rebuilt at the moment and will be for sale shortly that I could recommend.
I would point out that I have no financial interest in this aircraft apart from being paid for signing the B1 release to service and as such am very happy with the work that has been carried out.