Best free XSLT editor for eclipse?

Question

Which is the best free solution for XSLT editing in Eclipse?

Solution

Orangevolt is an open source Eclipse-based XSLT editor, that sounds pretty good:

The Orangevolt XSLT plug-in, successor of the Java™ Swing-based ROXES XmlWrite, provides Eclipse with an enhanced XSLT editing environment. The plug-in builds upon the existing Eclipse Web Tools Platform (WTP) and introduces new features for XSL and XML ... These features include easy-to-use editor extensions, XSLT-specific launch configurations, syntax-colored XSLT process output, XPath navigator view, among others. In addition, one of the most interesting features of the plug-in is its ability to add and configure XSLT processors. The plug-in includes XSLT processors, such as Xalan and Saxon.

My favorite is oXygen, but it's not free (but it is an excellent value.)