Agree with Yellowbelly, if you want to look at making a few bob down the line, stay away from Costa Blanca and other bad selling areas and try a relatively "upmarket" resort area like Western Marbella. 250 k should get you great value down there right now; I was there a month ago and I was surprised at how low prices have dropped in some very good developments.
Ignore the asking price by the way in all cases, and ask around of locals as to what places are really making --there's a significant difference. I saw one good development that is well settled and has a high percentage of owner occupiers, and nice 2 bed apartments in it are actually making around 170 to 180k (asking about 220k).
Key issue is this: Don't even think of buying in a new development, at any price. You may find yourself living in an almost empty building that is owned by a bank or a receiver, and you won't know what will happen to the common areas or even to the other apartments. Buy only in settled blocks that have been built a few years, with a high percentage of owner-occupiers. Ideally buy a house, but you won't get a good one around there for 250k unless its in a development with communal charges, so still issues to watch for.
If you always wanted a place in Spain, and you want to have the option of making a few bob when things improve, this is a great time to buy. There is absolutley nothing selling, and sellers are taking serious hits in order to offload. The brother of a friend of mine recently offered me a house on five acres of olive and orange trees in a very beautiful part of Granada province for 150k, and intimated that he would take less if pushed. In good times that would have made 250k no problem; you couldn't buy the land and build the house for that now.
(I declined by the way. One Spanish home is enough!).