I will be there, with my buddy who is getting married (kinda like a bachelor party on steroids).
I started a thread in travel:Europe in which many people advised against actually running with the bulls. So we'll be there but haven't made any plans to get down in the streets.
Have you made your land arrangements? I only just got the tickets (UA/LH First to BCN) last week and haven't worked on lodging--fear it might be too late already