Hi Elaine;
I moved to Pittsburgh about 15 years ago and love it! It's a beautiful city with very friendly people, good jobs in the Banking, Education, and Health Care industries, and, working in IT, I've never been unemployed. Housing costs are VERY low. That $150k - $200k would get you a very, very nice house in Pittsburgh. There are some really great neighborhoods in Pittsburgh if you want to be able to walk to everything and catch a bus when it's too far to walk. I highly recommend the Squirrel Hill neighborhood, which is like a small town unto itself. We have large, beautiful city parks if you want to enjoy nature, and Pittsburgh has consistently been one of the top "most livable" cities.
Good luck!