I've been to Barcelona a couple of years ago and I loved it.
Gaudi's artworks really impressed me and the city was so bright and full of life.
Happy to hear you had a great time!

and the book vending machine was so cool! I found one (and an iPod vending machine too) at the Toronto airport, but having it in the street is much better! :)

Also... I see there were almost no tourists over there... lol.