@Muzimak,

I believe, like sixwheeledbeast (If I understood him, correctly), that real and usefull webdesign is to be found in code, html and css, rather than in Photoshop/Gimp or anything like that. Basically you need two things: A basic and simple text editor for code (Gedit or Notepad or anything like that) and the willingness and time to put your brains to it. As a generalisation; The webs best pages are usually not built with graphical tools but from code.

Basically, HTML and CSS will allow you to build as flexible and versatile as possible, whereas graphical programs will eventually be a drag to convert them to html/css and have them display and behave well on a as wide as possible range of devices.