This small LifeStation box seems to use Windows Media Center (integrated in Vista) and has a Blu-Ray/HD-DVD combo drive. The case is said to be in aluminum and it is using only passive cooling (no fans!).
Despite its small size, the manufacturer says that it can accommodate up to 1.5TB of storage. On the video side, it seems to use a Cirrus Logic chip, which is a little scary, but I’ll reserve my judgment for now. The LifeStation is part of a larger digital media line-up. Take a look at Passive’s website. Price: unknown, but probably steep.