I used Notepad about five years back when I used a PC extensively. I only know HTML and CSS from about HTML 4. Even though, I still use W3C to verify it and browsershots.org to verify it in each browser, if I don't already have it on my own computer, which is now a Mac. I've recently been learning Dreamweaver from CS2 and now CS4, it does help with the auto-updates of pages, using a template. I use the program but still code more than drag-n-drop.
I'd sure like to learn PHP, the closest I've gotten to it is PHP Modules in Wordpress when I converted my HTML/CSS template to a Wordpress template, using a bare bones Wordpress frame.
My other focus has been on Microsoft, Apple and Ubuntu Linux's hardware/software.