I've got Avid BB5's and despite hearing a few negative comments about being difficult to adjust, I find them eays top adjust without any tool, and I don't need to adjust them much anyway. I have no rubbing on the rotors, no annoying noises, and they will stop the bike in a hurry, wet or dry. Love 'em.
Pablo, if you do decide to get a new wheel/hub, I recommend Sun Ditch Witch. I've been banging around, over and into all kinds of things, wheels are still as true as they came, never yet had as much as a loose spoke.