Another really suburban, pleasant locale is Ambler, PA, just to the north of Philly. There's even a very nice Temple campus up there. I think you could use their facilities if you wanted, for weekend recreation, for example. Rents are pretty low in Ambler, and it really is a quaint, small town.
with 1.5 months of when you want to move in is good. Most apartments are 1st come 1st serve, and they wont hold them open for you. Also check Templ Housing listings you may find something good in an area you didn't consider. I know Temple gets people to inspect the places that they allow on thier list. I have dealt with Temple before. they are Nazis about protecting thier students. I'm moving to Carlisle PA. Plan to sign a lease in July for Aug 1. That gives me most of the month to fumagate/clean, move, and settle in. Hopefully I'll find a place that's a keeper for 3 years. Of course the market there is a little different.