OK, this is just way too cool. I have a file server at home that is dying. I've been looking for a cheap NAS that does RAID1 mirroring. Finally, D-Link came out with the DNS-323 that does just that.
I have it and two 200GB hard drives on the way. The kick ass part is that I stumbled across this page:
That's right, the DNS-323 runs Debian, and you can install Subversion on it. That means I can have it svnsync from my real live subversion repo to itself.