Hey guys. Planning a trip to Barcelona at the end of August or first quarter of September and I'm looking for an apartment for rent for a week. Does anybody know where to search for such a thing? Any dedicated websites to renting apartments for less than a month that offer any guarantee? I don't want to get there and find out that the reservation I've made doesn't exist. Happened to me before when dealing with home owners (struck a deal with the man and when I got there he already rented the place). So, any info would be helpful. Anyone?