I bought a set of e-motion rollers on craigslist for $350 a few years ago that looked like they had never been used. One of my best cycling purchases ever. I also have a set of the hundred dollar nashbar rollers that you can't do intervals on but are perfectly fine for winter base miles. If budget were a concern that's still the way I would go. I have a treadmill too but I have never tried to ride my bike on it. Maybe I'll give it a try this weekend and get some video.