Are you using or thinking about implementing a Terminal server then you may know this is neither easy nor cheap.
Well me to the rescue (or well rather a link to the rescue), there is actually a cheaper and easier alternative that will make any Windows XP, 2003 or 2008 into a Terminal server without the expensive TS licensing, read more at;
While writing this post I also stumbled across this;
(Another TS alternative).
And the older free hack for Windows XP sp2 (dont know if it work after SP3);