Helen, you are so my new hero! That is an awesome time!
Hrbabe, are you wearing compression shorts? They are an absolute run-saver for me. Like a bra for all the floppy bits on my thighs and backside.

They also keep my thighs from chafing. Not that you have the same issues, of course!
Lisa, you are going to do just fine at the race. Eat something lower-GI (oatmeal, banana) a couple hours before, maybe 200-300 calories, and then maybe something higher-GI (gel, gatorade) just a little before. It is possible to get worn out standing around, but walking is easier than standing if you can do that--getting trapped in a corral for an hour is the worst. Sitting on a nice piece of grass and then warming up a few minutes before is ideal, if you can swing it. Good luck, I'm so excited for you! I know you are going to do great.
I'm almost done being sick, I think, and am shooting for a run Wednesday morning. Public commitment--if I'm well, I'll do it! Why does it always seem like such a big deal after a layoff??
Anne