Peña Platería is perhaps becoming "too popular", but still frequently excellent artists here. I use to go to theater performances or smaller peñas (flamenco clubs). Both the major theater performances and some small scale top quality events in local peñas are updated here: http://www.deflamenco.com/seccion-conciertos.html

Thanks, pgriffin. That's one of the hotels I noted, so good to. Hear you really liked it.
Paule