Windows Home Server
OK, this is going to be cool. I'll bet I can even use it to store programs for my TiVo! The new Windows Home Server is a headless multimedia storage, secure backup, and remote access server that sits in your closet and just does it's job. Quietly and efficiently. Jesse Lewin describes it here. Cool. Yes, I could do the whole thing on my own, but this is simple and well thought out, and I don't have any overhead except power and network. No keyboard, no mouse, no video card.
Charlie.