Planning for our trip to Spain, May 2005. We have considered the possibility of booking hotels ahead only in Madrid and Barcelona. For the rest of the trip we would find accomodations as we go. In addition to MAD and BCN we will likely be overnighting in Avila, Salamanca, Segovia, Seville, Granada, white towns. Is this feasible?? Thanks in advance for any suggestions or hints.

Sandyb