An entirely new product category in the Windows family has just been announced at CES in Las Vegas: Windows Home Server. It will tie together many of the devices in your digital home, offering centralized storage, backup, and other services. It will let you access your home computers remotely & securely. (Check out Charlie Kindel's blog entry for some more info.)
Can't wait to get my hands on this thing, esp. because I just got that new 500 GB drive for backing up all my personal data.