HI RT,
I was looking at this as an idea for myself and have decided against it for now. Things operate very differently in America regarding property purchases and I've decided to hold off and research it a lot more before making a decision.
For one most foreclosed properties are sold with a quitclaim deed which does not actually guarantee clear title on the property. You need to get title insurance for closing and then your attorney needs to sue for clear title to ensure you actually own the property properly. You also need to check the property is clear of liens and back taxes as if the foreclosure is not done properly you are potentially liable for them.
The taxes on properties are calculated differently than in Australia and are charged annually. These can range from under a grand to thousands of dollars a year depending on the county.
A lot of areas are in trouble at the moment with little hope for a quick recovery and just because you can buy a house for $10k or less in some cities does not make it a bargain - there's a reason they are this cheap!
Good luck with your property hunt - I would be very interested in hearing your experiences as it's something I'll look into more in the future.
Regards,
Shannon