Living In Spain...Advice sought.

Hi guys. My hubby and i are thinking of checking out Spain, perhaps moving there…but definitley up for re-locating from the States. I have an EU passport so no problems with legal requirements for the both of us. Not sure if this would be the right forum but if there is anyone living or recently moved from Spain and would like to throw a few pointers my way i would appreciate it.
Primarily thinking of Barcelona…Also, something to point out is that we are an inter-racial race couple (Black American & White European) we dont know the state of race relations in Spain either..but would like to find out about it…
Cheers.