Hmmmmm - Houghton, by any chance? If so, there is also Jamis, Felt, Norco, ......
Just go and ride bikes. Find something that feels fun. As NY Biker said, you need to figure out what type of riding you want to do, and go from there. When you go to a shop, describe your past experience, and why that bike isn't working for you.
Oh - and the brands you listed are all good brands. That doesn't mean the bottom of the line Trek would be as good as the top of the line Trek, etc. Once you ride a few, you'll get a better feel for what you like.
And we will have snow in the air in a month, and on the ground in mid-October, and (I'm hoping) covering the trails by mid-November.
The Warrior Princess: 2008 Jamis Xenith Pro / Bontrager Affinity 1 (men's)
2006 Trek Fuel EX 9 / Bontrager Race Luxe
2007 Trek 520 / Serfas Terazzo
Amelia Pond (She travels long distances, has great adventures, and she's a redhead): 2007 Trek Pilot 5.0 / Bontrager Affinity 2 (men's)