I have a moderate amount of experience with web design, primarily html/css (no php). I've learned a lot about Wordpress in the past couple months and absolutely love the functionality of Atahualpa. I have used it for a couple of my site so far.
I started a new site and have been playing around with background images, and am trying to get toward a large background design like http://www.webdesignerwall.com/. The background image I add turns out to be fixed to the browser window, with the body floating on top of it... no good.
If there's some instruction on how to do this somewhere on the forum I didn't find it-- I'd be happy to read through that first. But, I'm willing to spend something to not have somebody do it for me, but to show me how, so that I can extrapolate for future websites. Contact me through PM if you're interested in this kind of "tutoring" position.
p.s. the sites I've done so far with this theme: