Yeah, I saw that and began researching NAS options after your post. I ended up getting a Ximeta NASD drive 250gb. The rub is that apparently it's not compatible with the little 4 port switch that I have downstairs amongst my audio/video gear. However, when I plug it into my router it works fine. Ximeta's site does say that it's not compatible with all switches. I'm thinking of calling the Buffalo folks to see if the Linkstation will work my switch.
What I'd love to do is put another switch off of my downstairs switch and connect or daisychain several Linkstations to create a storage array. It would probably look like a mini-nuclear reactor site, but it would be cool.