I just came across this place and it looks fairly interesting for those on a budget.
***update 2-12/2008**** this place IS pretty nice. food's good, the lodging is nice for a small motel and for camping, etc. there's a grocery store on site, a goooood restaurant, free wireless, and it's got the only real tavern in big sur. you can have beers with the locals!
i strongly recommend, however, that you try the big sur lodge first, as it's the most convenient for the wedding shuttles/ rehearsal dinner. and you can share larger rooms with other groups, couples, etc... to save on costs. tell them that you're with the carnie/rockenfeller wedding.
Dave and I will be traveling up there this weekend, staying at the Big Sur Lodge so we can report on he rooms and food and whatnot there. And we're gonna pick what kind of food you people will be having on Midsummer Night. I'm thinking hot dogs and coleslaw. Or maybe Ray Gordon can cater it with that crazy Pollack dish he always makes for Thanksgiving.