Any CSS experts out there?

I learned a bit of CSS to change my MySpace layout, but I’ll admit that I’m a total newb at it and forgot it all.  I also REALLY suck at DIV overlays.  With that said, I’m sick of the look of my WordPress blog and was thinking of overhauling it, but I’m at a loss as to how to do it.

Any Machinima lovers want to make me a nice layout that is WordPress.com friendly?  I’d be eternally greatful.