rich! I never made the connection! I checked out the shadowbox demo a while ago and was super impressed. Have you used it on any Ubercart sites?

Also, +1 to everything you said about the write-up. I bookmarked it for review as well. Anyone can create documentation pages, so if you want to create a "comparison pages" container that would be great. There's already a Contributed Modules page that would be a good parent.