If anyone posts any Alton Brown techniques in this tread you don't know how to cook and I find you annoying
Anyway, brining just involves a water, a sugar, flavorings, and an acid. You can brine with anything, so for holiday meals think holiday spices and fruits: oranges, cranberries, cinnamon sticks, maybe some apple cider vinegar, brown sugar, and water.
I've actually developed a technique where I lightly stuff the turkey with citrus peels, carrots, onion, parsley, celery, and some other stuff, then I wrap the top of the turkey with thick bacon, cook it at 450 for 30 minutes or so, then turn it down to 275 and cook for 12-14 hours (I do 2 turkeys at a time, 1 can probably go for 10-12 hours).
It's the same technique I use for barbecuing, and the result is a a super juicy, rotisserie style turkey that is self basting from the bacon. No need to brine at all.