I've googled around and I see that more people have the problem of the complaining X Server when there's no head. Ubuntu users mention the same thing.
I've decided to do another perfect install, this time without desktop, and see what I can do through ssh, ftp and so forth.
What I like about having a graphical environment is the ability to drag files around in my web files without having to use ftp. Is there a way to make the approach to my debian server more graphical from my main computer (Mac OS X, by the way?) than just hss in terminal?
To answer your question, Falco: yes, ssh works. And, of course, thanx for your reply.