International Movers to Spain

My family and I are relocating from Newcastle in England to La Manchica, Spain next year (2013) June. I would like to start getting estimates from companies whom are specialist International movers to Spain. We are not planning on moving our entire household therefore the contents approximately are the following; one king sized bed, one queen bed and two single beds. As well as bed stands and two drawer cabinets, also there is a standard sized lounge sweet and a ten seating dining room table with chairs. The only appliance from our kitchen will be our large double door fridge. I have acquired thirteen boxes which measure at 750 x 750 x 750 which we will use for other household items. There will be no more than that. Please be sure to mention on your estimates the possible increases in rates for the time mentioned above. I would prefer being prepared for any additional costs. So I would greatly appreciate if all 'extras' could be listed and quoted on your estimate.