NH Barcelona Centro is a little 3 star hotel without pretention but just perfect. Located 100 meters away from the Ramblas it offers quite rooms in a pedestrian street, air-conditioned with plasma satellite TV. Decoration is simple but rooms are very comfortable.
From Cadaqués to Tarragona find summer villas from the Costa Brava in the North of Catalonia till the deep south of Costa Dorada. Most villas are on the seaside but you should also search in the countryside and the Catalan mountain which reserve nice surprises..