May I suggest that you see if you can keep your UK house and let if off, then go and rent on a monthly basis [ long term lets are for just less than 12 months for expats in Spain] find the jobs you want and if it then becomes a 'yes to Spain' sell up in UK and buy in Spain
The good deals[ and by that I mean good property at sensible prices] will be around in 2008 but 2009 who knows!
Doing it this way you keep an entry back in Uk if the jobs do not turn out OK and UK rent will probably cover the Spanish rent!
I have bought in Almeria, near Hurcal Overa. but to start with [ from mid 2009] for winter but then perhaps full time!