The area directly around AMAT can be fairly rough and the schools are not generally in the 'top performing' lists. My immediate thought with that budget is to look in Round Rock, Pflugerville, Hutto, or Georgetown right near the toll road, since AMAT is near the intersection of hwy 290 and Toll Road 130. OF course, you would then have to pay the toll

. Anyway, you can get a very nice house in any of those places for 200k and they all have good schools. In Gtown, you would be able to get a larger lot, if that was something you are interested in.
If you want to stay in Austin, it gets a bit tougher to find a house that is in a nice neighborhood, is commutable, has decent schools, and is <230k. I have to ask, since you are comming from out of state, if you have considered property taxes in your budget? 2.5% is a good estimate (it may be higher or lower in actuality, but you have a homestead exemption and probably some tax deductions), which comes out to about $5k/yr or $420/month (just in taxes) on a 200k house.
The red circle in the pic is the approximate location of the main plant. The green roads are the toll roads and are generally pretty quick for getting about during rush hour.
