developerWorks : Style sheets can write style sheets too
"This article shows how an XSLT style sheet that performs some particular runtime transformation can be built from XSLT components." I really like XSLT but it really shouldn't be left in the hands of just anyone. I think the popular understanding is that you can just get the propellor-heads to generate XML programtically and then have your designers writing XSL. The problem is that, unless the transformations occur in an environment that monitors memory, CPU and disk usage, there is too much opportunity for a sloppy, or malicious, errors that will bring the whole machine to it's knees.