After reading the thread about editors, I D'led PHP designer 2006.
The first thing it did was ask me if I wanted to DL and install Apache with Mysql, PHP and PERL from apachefriends.org inorder to take full advantage of the preview function of the PH interpreter.
I haven't done it yet. Should I? Do I need it? I just want a full featured editor. This one seemed to have decent reviews everywhere I looked.