A friend at work that knows that I have a Mac-based home theater, offered an invite to the in-development software/service, Boxee. It is a very well-designed piece of software currently for OS X and Linux that presents not only your own library of music, videos, and pictures, but also can present web services like Hulu, YouTube, Flickr, Last.fm, and others. Hopefully, it’ll add support for EyeTV so I can watch recorded shows in the same interface.
While it is considered alpha, the amount of function and polish is quite significant. There’s social aspects like seeing the things your friends have listened to or watched. The service is invite only currently, so if you’re interested, please let me know.