i want to set up additional server administrators so that they can set up and administer domains on thier own. basically i want to be able to offer to web designers a block of space that they could resell virtual web sites on as if they were the actual host. has anyone done this? how does it work out? what settings did you have to use?

I could be wrong in this, but I believe you can't do this. Yes, I know, another wonderful aspect of the RaQs.