Here are the following confirmed vendors:
Black Knight Comics: One of Vermont's own, specializing in anime, manga and Japanese figurines. In addition to offering game and game supplies.
Over the Edge Games: http://overtheedgegames.com/
Based in Fairhaven Ma, Over the Edge Games has been traveling far and wide on the convention circuit having been to Origins, Gen Con and others. They bring a wide selection of CCG (Magic, Yu-gi-oh, Pokemon, etc), Wiz Kid Games, D&D/Star Wars minis and vintage Nintendo and other game systems.
Your Move Games: http://www.yourmovegames.com
Chad Ellis from Your Move Games will be selling and demoing Battleground in the Miniatures area. Please check out this fun and portable game. More information below:
We are discussions with two other vendors (one for more magic and single minis, the other for action figures and comics). If you folks know of anyone else we would be very interested in inviting them to the convention.
Hope that helps,