Just finished my first trainer episode with Spinervals 4.0. Sweated my azz off, even with a fan set to "hurricane". I went through 40 oz of water in the 45 minutes it takes to do the workout which is 20 oz more that I drink during my daily 35 mile circuit. It beats the hell out of staring at a wall!

I'm gonna have to pick up a couple more of these DVD's. Anyone have recommendations?