For Windows: you can use SunRays with a server that runs VMware. Each SunRay has it's own VMware session. Via RDP. I think you first maybe have to connect to a Solaris desktop? From there you can start up the desired VMware session: Linux, Windows etc
Or you can run Linux or Solaris on the server. I can really recommend SunRay. They are very very neat. Administer only one server, instead of administering 15 indvidual PC is much easier. SUN world wide, has in total 38 admins for 19.000 SunRay deployed over the whole world. The SunRays can be taken home, and login via internet. $249 is cheaper than a PC. And they use 4W each. Huge savings on all fronts. Man power, electricity, admins, more stable, cheaper with one server, etc. Try them.
Here is my experiences on setting up a SunRay at my home server. Skim the thread if you want to know what difficulties a SunRay newbie has to face.
http://www.linuxquestions.org/questi...ghlight=sunray