Chronia polla :) Best wishes for the new year
http://hardware.atari.org/netusbee/netus.htm
This is not ready yet but it will be soon enough. And if you are good with electronics ethernec, the predecessor of netusbee, is open and you can easily find the schematics. I don't know anyone who's building them though. Rory McMahon's site seems to be down.