Hi, would also recommend trawling through the following articles too...
http://thesavvyfreelancer.com/31-days-to-start-freelancing
http://www.smashingmagazine.com/2009/07/09/the-roadmap-to-becoming-a-professional-freelance-web-designer/
And if you don't already, setup a "delicious" account for all your bookmarks as if you get into this you will find hundreds of useful links that three weeks later you can't remember what or where they were.... so "tag" them as soon as you see them and then you'll have them wherever they were.