Video from my server to my tv

On my home network I have a Server running Windows Server 2003. This server holds all my media including my entire dvd collection, and all my music. I would like to be able to access this media via my tv. When I say access this media, I mean from across the room with a remote and not a keyboard or mouse. I'd like to be able to change the input and select a movie/song from a big list, or something simular. I've read a little bit about media center and extenders and that seems to be the only option I can find. I'm wondering if there are any other options. I've also seen these media center barebone systems on newegg.com and was wondering what that was all about. How much am I going to have to spend to get this working? What kind of hardware will I need? I'd rather not use Media Center software or extenders if I don't have to.