Most foreclosures are not a "good deal." You won't necessarily get a price below market and many foreclosures require remodeling.
The best case scenario for getting a house cheap in a foreclosure is if you buy it at the auction (look for Notices of Trustee Sales in the local newspaper) and that you've done your research and can know that you are getting the home with all of the liens paid off. You also need to save a few thousand dollars in case you have to evict the previous homeowner. You would also be getting the home without any disclosures and without a viewing, so you have no way of knowing what the condition of the home is.