Well, I just got back from the indoor cycling class, and I think at least for awhile, I will have to just get myself signed up for those (there is always a wait list). I didn't manage to keep up the whole time, but my HRM says I got a hard workout.

(Although, that class is a much steadier, hard effort. The teacher is not an outdoor cyclist, and there are not many short, maximum intervals...more like long hard lactate threshold intervals.)

PS: I'm going to post on the For Sale/Wanted To Buy thread, but if anyone has a Spinerval DVD or two that they are sick of and want to off load for a lowish-good price, I would definitely be interested.