With bad weather preventing you from riding--what you are looking for is something that will challenge and motivate you to keep riding despite being captivated indoors.

You already have a stationary trainer. No need to spend a lot for powertrainers, computers, and other gadgets

The DVDs are good and they keep me motivated when I can't go outside to ride. During the winter months, I'll do stationary rides 3-4 times a week. It keeps my legs spinning when otherwise I would have zero miles.

What also helps is if you can find another friend with a stationary trainer who would do the sessions with you.

Keep a training diary. That helps see your progress. I use one online which also helps me to gauge my progress against others. See www.activebody.org

The DVDs are typically around $30 each. Pick a couple that look interesting to you. Spinervals and Carmicheal Training Systems are both good series.