Troy is located near the boarder of two Multiple Listing Services. The larger has a public website http://moveinmichigan.com that will have "bargain" homes in with the search. In Michigan, Buyers are only reprisented by a real estate professional under a Buyer's Agency Agreement, A sample is available on the website below.
Depending on where you will be working and how far you would like to drive, you can find a nice deal in both Counties. Prices are great but be sure you check out the property taxes of each county. We have all the cities and townships listed at http://Millrates.edandcindyknight.com.
Below is a great site to find homes in both counties to do some comparision shopping.
Realty Executives e-Group
This is just one of many that I represent which are below value.
Please feel free to call me anytime @ 313-617-2699 or email me at firstname.lastname@example.org
Real Estate One
Check out schools at http://schoolmatters.com
Troy is actually served by more than one school district, so the school district (Birmingham, Bloomfield, Troy, and Lamphere) you chose and the price range you are in will determine where you will end up buying.