3
Everyone has their own preferences mine are:
EditPlus - good in-file search features, good directory navigation, great undos and excellent FTP for when you get hosted.
TopStyle - for learning CSS - I just use EditPlus now though.
Xara X for graphics. It not the industry standard but I have tried Photoshop and Paint Shop Pro.
PHP Expert Editor to learn PHP - I just use EditPlus now though.