I found this on Google Video, it's a program that was aired on the G4 channel called "Icons". It documents important events, games, and consoles in gaming history, and this covers the Sega Dreamcast. It's a fantastic overview and short history, and even non-gamers can follow it.
If you're interested in this kind of thing, I really encourage you to seek out a site called Eidolen's Inn, which gives a very in-depth, comprehensive view of the history of Sega. It's very compelling, and a real treat if you love the history of games. To briefly clarify something, the reason why Sega was bleeding money and lost the war to PS2 had nothing to do with the performance of the Dreamcast console. The Dreamcast did an excellent job, and was a smash hit by the standards of the late 90's. It was due in large part to past mistakes. Sega overextended themselves with too many consoles, as was stated in the program. But something that wasn't mentioned was the decision by Sega of Japan to discontinue support for the Genesis, their most successful console, in order to focus on the Saturn, which proved to be a failure in North America. This cost them millions of dollars. SOJ were real boneheads, the arrogance of these morons never ceases to amaze me.