you guys should definitely go the PGA. i went to the '95 PGA championship at Riviera and it was fantastic. the practice round days are terrific because the players are genuinely accessible and most of them are great about interacting with the fans (except greg norman - he was a jerk). good time to get autographs and pictures, too.
i had a "season pass" for the week and had access to the wannamaker tent, which was really nice because it had better food, lots of tables and chairs, and plenty of shade. they also had tv so you could watch the broadcast. they also sold mountain dew, so that was a huge plus.
on tuesday or wednesday they had a clinic with former PGA champions, and it was great. nicklaus talked about hitting from the proper tee for your game, someone else talked about using your short irons, and john daly got up there and blasted the crap out of tee shots. there were a couple of other guys, and they were all relaxed, interesting, and generally pretty funny.