I have another idea. How about the Boat House in SF at Lake Merced? I stopped by this place today and talked to them. They can easily accomodate at least 75 people as they have a separate dining room, outside porch area (see attached picture), and regular restaurant area with a large bar where people can spill over to. They seemed very casual and eager to accomodate our group if people show up at different times.

Now, its definitely not as fancy as the other places; In fact its a bit divey. Its your typical bar and grill joint, but with many pluses. Ample parking, beer, 6 pool tables, beer, air hockey, beer, view of Lake Merced, beer, fishing, beer, boating. The separate dining room has a stage so we could look into the possibility of a band.

What do you guys think...
--Andrew

PS: Did I mention they have plenty of beer.