Trying to change the look of my blog...

Hey Guys, i am trying to change the look of my blog so you may see a different look each time you come here ! don't get irate..plz..

As a guide i am using the blogs of and not to mention my favorite html editor front page  :

http://blogs.msdn.com/jledgard/default.aspx

http://blogs.msdn.com/robburke/default.aspx

Thanks to you guys...