Once Christmas is finished and I get the bills paid, I certainly want to pick up one of these WD HD TV boxes and rig it up to run media from my server. Can you wire in a network connection to either model or is wireless your only option? I would rather run powerline ethernet to my TV than clutter up my wireless anymore.
On a somewhat related note, I actually turned my Wii into a poor mans wireless HTMP with
Orb. It isn't HD of course, but it does work not too bad. There are some other methods with
Homebrew Wii and
GeeXbox for Wii that I am going to fiddle with over the coming week that I am thinking will work even better.