Free XML Editor?

Hi list

I use XMLSpy, Oxygen and Stylus Studio all the time but my students
sometimes ask me if I can recommend an all free XML Editor to use at
home or if their company can't be persuaded to invest in one.

I'm looking for a dedicated XML editor like the ones mentioned, good
at making xsd-schemas and XSLT but all free not just for an evaluation
period?

It is easy to google and start downloading, but too often the
downloads are less serious than I can accept, they can only do dtd or
they are only free for a period, etc.

So some hints in the right direction woud be appreciated to save me a
lot of time.

Cheers,
Jesper Tverskov

http://www.xmlkurser.dk
http://www.xmlplease.com