I'm retooling toward all film weddings.
I like Vaughn's idea of one great shot too. I want to provide a very limited amount of shooting and a well-defined set of prints. One of the things that I found in digital was that too much choice is not good for the client or for me.
I'm thinking 4 - 36 exposure rolls of 35mm and 2 rolls of 120 in a TLR, for a wedding with 50-75 people will be more than enough.