Paizo sent us autographed copies of the Pathfinder Core Rulebook, Advanced Player's Guide and Seekers of Secrets
ACD Distribution sent us a giant chibi Cthulhu plush
Scars of Mirrodin banner and super special collectible Magic life counters from Alliance (they're worth about $50 each). On the bottom is a Fortress of Redemption from Games Workshop.
The local chapter of the Society for Creative Anachronism (SCA) will be at our party. Here are a couple of photos of them from our grand re-opening three years ago: