[SOLVED] How can I add div boxes to areas other than the posts/pages content area?

I want to know how I can add div boxes on my page, for example, a div after the footer (creating a widget area won't give me the look I'm after), or a div that I can position absolutely and give a z-index so it will float above another div.
I've not been able to figure this one out, so if anyone can tell me if this can be done and how, I sure would appreciate it.
This is a general question, not for any specific site that I can give a URL to, but I would be using the most recent versions of both WP and Atahualpa.
Thank you!