767,
The North end of Lake Conroe has several developments that are in your range and are on acreage. 2 acres on the water is going to be tough. Off the water won't be a problem at all. It will be a quick trip down I45 to the Hardy tollway and out to IAH, under an hour easy. Small town public schools, not much you can do about that. A couple of really good private ones.
Check out
http://groups.yahoo.com/group/Houstoncobraclub/ and join up. Great people and we all help you spend your money
Mark