Well a week ago I decided I was gonna put my unused SE knowledge to use and do my first project. So far it's consumed this much as far as resources go:
A bit of bandwidth
Some software I wrote to optimize for all my keywords
$15 for PR boost
So I've gotten 100 pages indexed in google and alot of first page results for my terms. I'm also using a dynamic script to deliver content so the CTR is great.
Definately how I'm going to focus most of my time from now on. I've already added domains for 3 more keyword sets but they haven't all been indexed yet. Big ups to all the SEO guys out there
One thing though, I'd hate to try it for adult. Competition is a bitch.