Let me know if you want me to send you the listings and help you get started (given the address, I could look into the Penn Hills place as well). Are you pre-approved?
Best thing for you to do would be to walk around the neighborhood and talk to the neighbors - get their opinion of the area and use your own best judgment.
Typically, selling a home within 3 years of purchase won't afford you much of an opportunity to break even on your investment.
Most of your mortgage payment will be going toward interest and taxes. If you can put in extra money each month to pay down the principal (assuming the terms of your loan will allow that, which in most cases shouldn't be a problem), then you may be in decent shape when the time comes to sell, i.e., you won't be upside-down owing more on the house than you could sell it for at that time.
If you have other questions or need more info, feel free to contact me.