I hate to spam y'all too much--but I figure since my account is so bloody old I'm permitted the occasional bit of shameless self promotion.
Anyway, I've put together an extensive 5-hour long downloadable lecture on all things freelancing--portfolio building, branding, marketing, finding art directors, etc. I've put a lot of blood, sweat, and tears into this thing. I tried to make it the best possible content I could. And I think I've done a pretty good jobs. Here's the beginning: