The Double Tree, Jackson, Tennessee.
Ask for the Graham-Hayes block. And here's the website if you're curious, or bored at work, http://bit.ly/GLueRZ.
It will pretty much be the base of wedding operations for the weekend, and it's right across the street from the ceremony and reception.
Although, "right across the street" in this particular instance means across four lanes and a median. And it's more a ditch, than a median. So please don't cross it on your own, no matter how athletic and nimble you think you are, or even if you have cat-like speed and reflexes.