Bay Bridge with Capital Air is a tad under $100 an hour with a 152 and instructor.
I think instructors are $45/hr, then (it was) $52/hr for the 152 blocked.
Block time on the plane takes it down a bit.
You can check out their web site (google it), and they also fly out of Tipton right across the street from NSA.

(Now, with that said, NSA's computers picked up this message because I've included their name, and
I'm probably on a watch list because this is aviation related. Uh oh!)