I've been looking at those too. I just emailed them a few questions about them.
They don't
have to be 802.11b, so you can use ethernet to pmprove speed and disable the whole wireless side. The kit looks cool to me. You could keep changing out the HD that way as needed. They told me they could do a custom build of one of the non-kit units with the CD/drive for an addl 75 bucks. Seems reasonable. Theey implied this was basically their cost.
Then I started thinking about an ext FW drive with
SharePoints.
Still chewing on all this...