I know you've already gotten a ton of responses and probably already have a list of things to try. I just wanted to chime in and say a few things...
1) TEST the recipe before the big day!!! I can't tell you how many times I've been excited about a recipe that sounds fantastic when reading it and when it was on the table, it was nowhere near what I wanted it to be. Also, testing it allows you to make changes based on the outcome, or figure out timing, etc. and then make the 'perfected' version on the big day.
2) I used to make a different sweet potato dish and a different pumpkin dessert every year, until I found something that everyone really loved. So if you decide to venture out and make some new version of a old favorite - keep notes! next year, you won't remember what worked and what didn't.
3) Time everything. The hardest part about doing a holiday meal is having everything hot and ready at the same time. Some stuff you can make ahead or just earlier in the day, and then while the turkey is resting, re-heat in the micro or in a hot oven. If you have a separate roaster or slow cooker that you can use for some things, that is a big help. Take the pressure off your oven and stove top if you can. And use a turkey bag. They seem to cook the turkey's faster and keep them moister. And if you do use the bag, cut the top off in the last 15-20 min of cooking time so that the skin browns better.
4) I have landed on a turkey recipe that is phenomenal. Well, my family loves it anyway. It's basically an herb butter prep that really flavors the meat and keeps the turkey moist. Also, a twist on the standard green bean casserole that really makes a difference. If you want to try them, I'd be happy to give you the recipes. If you've already found something you're excited about, then follow your instincts. And have fun!
edit- oh wow. just saw the dates on this. I'm later than I thought with a reply!