Do a search on gallbladder and gallstones on BB, you will find loads of threads.

I had mine out on Friday the 13th (of February) last year...best thing I ever did and it might just as well have saved my life.

Don't miss the horrid little sucker one bit, was in a lot of pain for several months beforehand, didn't really have any problems eating etc afterwards. If I eat a lot of fatty food in one sitting (like fish and chips or a really greasy curry) then I get the runs, but don't have problems with most food.