Denise, Jan is right - the decision is usually the hardest part. Fortunately, from this point on, you'll have someone telling you what you need to do, so you won't have to worry about that. You pretty much just show up when and where they tell you, and they know what they're doing from there.
The pre-op does take forever, but I'm pretty sure they could have it all finished up in about 30 minutes if they didn't keep you waiting! Bring a book. I've also found it's easier to write down any medications you take and the dose and also any previous surgeries, the dates and details, that way you don't have to repeat it all 10 times they ask you the same questions! I just hand them the paper.
Things always seem to work out in the end. There seems to be a common thread here about all of us being "planners", so if you're like the majority of us, you'll have everything in perfect order before you head to the hospital. And if your family is anything like mine, they will screw up all your plans anyway, but like I said, it all seems to work out in the end. In the big picture, does it really matter if your 4 year old goes to preschool looking like Pee Wee Herman after a bad night? Probably not.
Good luck to you and try not to stress yourself out too much! I know, easy for me to say.
Lori