Welcome to the club Dan,
Lots of 150s for sale...everything from junk to mint. You should be able to get a nice one in the $20k neighborhood. Check any reigonal publications you can find. Check Trade-A-Plane, etc. Check eBay. Look at the bulletin boards at your local FBOs, scour the internet, etc. etc. Be patient. You'll find the one that's right for you.
Stay in touch on the Forum...some of the really active members are involved in the Clinton fly-in right now, but after that and OSH are over you'll likely get more feedback.
You'll nearly always get helpful answers to specific questions on this forum...it's a great bunch of people.
