I bought DH a FoodSaver for Christmas ~ the GameSaver Pro Plus. Should be good for large jobs. Hope it's as good as the price. I'm pretty sure he'll give it a whirl this week, so I'll let you all know how it works with larger cuts of game.
http://www.foodsaver.com/Product.aspx?id=c&cid=87&pid=244
http://www.foodsaver.com/Product.aspx?id=c&cid=87&pid=244