Hi Zolee,
Thanks for interest to our project.
We offer a solution consisting of linux server (CDS) and Linux PC (CLD
or CLDX).
Almost all of the software server and the desktop is a free license
(GPL, Apache and other).
Launch windows applications can be from Windos Terminal Server.
If you can not use the Windos Terminal Server in the first place
because of the cost, you can transfer only a fraction of computers on
linux - those machines, do not perform specialized windows
application.
Of course, as an option, you can use VirtualBox, which is part of the
CLD.
Documentation for the English translation is not yet complete, so if
you have any questions, ask them here.
Best regards, Alexander