If you want to watch a good entertaining show about brineing (spelling is more than likely off a bit) a turkey there is a show on Food Network called Good Eats. A few years back I watched the show and brined a turkey. It was great. The show gives you some step by step instructions and explains a bit of the science behind using a brine.
Good Eats is an awesome show, the recipe that TheSanDiegoKid listed is from that episode.
I've done it twice, and it is a great technique for having a delicious, moist turkey.