You might Google Arnie Baker and check out the online books of his you can buy. I bought one last year when I was training for a climbing century, and he has some things to say about simulating climbing indoors on the trainer, and how he thinks it stacks up against outdoor workouts. I think the one I bought was called ACE: Altitude Climbing Endurance...maybe not exactly what you want/need, but I know he has some smaller online "booklets" too.
I also know that even the few spinning classes I did last spring helped me build strength that I could feel on the bike. I plan to start them up again soon.
"The best rides are the ones where you bite off much more than you can chew, and live through it." ~ Doug Bradbury