Cleric/Monk prestige from complete divine I believe. Any thoughts on bringing it over to Pathfinder power levels? One thing that springs to mind immediately is to make the sacred fist aura a swift action to activate. The standard action activation is half a PF combat.
I'm thinking it's pretty good as written. However, I'd go monk/druid. You keep many monk bonus in wildshape, and the 3.5 wildshape feats, like Eagle's Wings, are fun in conjunction.