installing X?

I just reformatted my computer because of a bad tip I and I installed only the base-system to add what I'd want later. My question is how/where can I get a good X-server for Debian? I'm so used to gnome and don't really like it and want to try something else. I heard about something called: Xfree or something like that and would like to try it. Can anyone help me?
Please don't suggest KDE or something like that. I want a simple, quick to load X-server that I can modify as I like..

/Richard

I guess people aren't that experienced installing X Systems. Anyways I have the System (Xfce4) and have a manager (XDM) but it won't launch. It complains about /usr/bin/X11/X: no such file or directory. So I guess I need to 'recommend' it somewhere...