I am a tall rider, 6'5, with a long torso even for that height. My road bike is a custom and I want to get into a mountain bike, but was hoping not to have to go the custom route. I have heard I could likely get away with a stock frame because the riding position is obviously more upright on a MB. I have used a Kelin Attitude, 01 model, and their XL fit me pretty well. Any other suggestions? I have a cap of about $1200. I heard that Gary Fischer made a good frame for taller folks, but have not tried one yet. Mountain biking is very new to me, so please excuse my ignorance. Any suggestions would be most helpful. Thanks in advance.