Free XML Editor
 

For those of you working with XML code, you might find this free editor very useful.

It is an editor with so many features that I wouldn't even attempt to list them. You have to see it to believe it. It can be downloaded at:

HTML-Kit

There are about a gazillion different plug-ins that can be added but make sure you also download:

hkTagTreeLite

hkTagTreeLite will convert the standard text code into a tree structure like UIBuilder. By the way, hkTagTreeLite is also free.