Hi Sverre105,
when i saw ur message i remembered the "where should i start",
something i asked myself a few time b4.
I would advise you to concentrate on learning XHTML and CSS fist of all,
W3Cschool is the best place to do so on the web as u know already,
one of the best way to learn as well is 2 download free templates,
so u can see how it is done.
here a few links u might find useful 4learning&inspiration
markuptutorials.com tutorialkit.com vectorials.com inspiration
webdesignerwall.com beautifully-webdesign.net cssvault.com
cssDrive.com designshack.co.uk csscreme.com opensourcetemplates.org
dreamtemplate.com creattica.com
hope dis post was uselful 2 u
anyway, a 1st web is a great achievement!
good luck