I've done a little work setting up remote X-Terminals using Debian. The first one I did was a 486DX66 for my Daughter. Later she got a P133 and I gave her a full Linux installation along with Windows95.
The 486 then was used for various gateway setups, until I got another 486 with a built-in video chip I coundn't get to work in X, so I installed SmoothWall in this, put it in the loft and use it as a perminant gateway. I've now restored the X-Terminal on the 486 and connect it to my Dual PII350 mainly for demonstration purposes. I am hoping to sell the idea of using remote X-Terminals in a local school. I use Debian because it has a great package management system and it is easy to install a base system from floppy, then install the X system and just do some basic configuring and off it goes. The idea I had was, if there could be a task-X-Terminal that could be selected to install, via apt, the absolute minimum required for an X-Terminal, plus a silple configure routine for setting up the connection to the desired chooser. I'm not familiar enough with Debian package system to set up such a thing myself, I just use Debian for it's superior packages. I'm not sure if this is the right forum, but I'd thought I'd start here for any ideas or suggestions. Cheers, John Gay