Stylus Studio is a great XML editor with excellent tools for creating XSLTs, and basic XML documents, but as it cost more than $400 for the Professional Suite, you'll likely want to try it before buying it.
Luckily, you can download a fully functional trial version of the Enterprise version of Stylus Studio here.
You can use the trial version in any of our XML, XSL, and XML Schema classes as a way of learning the XML technology and familiarizing yourself with a very good XML tool at the same time.
Note that Stylus Studio is built for Windows. If you're on a different operating system, you can use Stylus Studio if you have Windows Emulation Software.
Nat Dunn founded Webucator in 2003 to combine his passion for web development with his business expertise and to help companies benefit from both.