Alex showed me a really cool site for XSL/T development! I have found the best style sheet ever seen before there:
Try this style sheet against the following document instance:
I think, this is a very good example for how readable XSL/T actually can be.
So ... just love XSL/T... and enjoy things on this site: http://www.dpawson.co.uk/xsl/sect2/sect21.html