Jason,
I remember getting an email from Dargal.com recently that mentioned Club Med deals in Polynesia so you could try there. Otherwise I'd suggest checking out the French hotel chains ( as Polynesia is French owned ). The Accor chain has a few places in Polynesia I believe ( they also own the Red Roof and Motel 6 chains over your side of the pond ) and they definitely have offerred deals through UK interline agencies before ( unfortunately the agency I remember doing the deals is now defunct ).
PJ