Just wanted to share this with you guys, http://remysharp.com/visual-jquery/ there is also http://visualjquery.com/ however, the latter isnt updated for jQuery 1.2 yet.

Zend Studio

If you have installed Aptana into Zend Studio, then you will find that you can enable a view for Visual jQuery, simply click Window> Show View > Other. Then select Visual jQuery from the list.