Hi from Texarkana, TX! Welcome to the QB. I have a Gammill Vision 18-8 that I purchased at the International Quilt Festival there in Houston in 2011. I have really enjoyed it. The Innova is also an awesome machine and I like the HandiQuilter machines. Unless you are just in a super hurry to purchase, I would recommend that you wait until the IQF this November and try them all out. If you want to purchase sooner, there are dealers in the Houston area for several of the major longarm brands so, perhaps you could visit several to try out the different machines.
Good luck and enjoy whatever machine you choose!