For a while, earthli custom-built cheap computers using new and refurbished parts. If you're the proud owner of one of these systems, you can find some support information here.
The Mark III is the oldest machine yet.
It is also refurbished, but has no new parts added. The system has been re-installed and upgraded.
The Mark II is the second system put together by earthli Systems.
This is another refurbishes system, like the Mark I. earthli Systems added a new sound card, modem and extra RAM.
The Mark I is the first system put together by earthli Systems.
It is a refurbished machine with the most important components replaced by the latest technology, chosen with an eye towards value.