First, Scott Furtaw has pages memorializing the astronauts and cosmonauts who died in the service of the space programs at http://members.aol.com/astromem/. It hasn't been updated for the Columbia crew yet, but I'm sure it will be. The couple paragraphs about Soyuz 1 are interesting.
Second, Man Conquers Space is an Australian (largely CGI and low-budget) movie in progress that posits an earlier and more ambitious US space program, in the form of a documentary using "contemporary" footage of things like a landing on Mars in 1968. It's not done (and I'm not sure it will be), but they have a pretty cool if short teaser.