Short Sale Or Not To Short Sale.?

At the moment my home is in foreclosure. It is a very nice home with new basically everything, but, I have options. First off, I have found a place to rent with option to buy that is much more what I have always wanted than the home I am currently in. Second, I have the option of proceeding with an FHA partial claim with the mortgage holder, which would add around 7000 to back end of my loan. Third, I could do a short sale, and be rid of the home clear. All must happen by the 15th as a "sheriff's sale" is scheaduled for that day. I live in the home and am on disablity. Anyone have any advice? :) :-o