I've been fighting with this for a while now. I'm getting close, but there a just a few quirks I cannot get figured out. I have a centered set-width div with a header, left side nav, and right side content. I want the content to scroll with the browser scrollbar and everything else to stay in place (ie fixed). It's mostly working. I have 10px of margin above the header and my scrolling content should not be able to be seen above the header when it goes up there. I want the whole wrap div to be set to auto height according to the content div with a min-height so it goes down to at least the bottom of the navigation links. But when the content gets longer than the bottom of the window, I want it to have a 10px margin from the bottom of the window and then auto-scroll the content.
Any help would be greatly appreciated.

I'll just post a link and you can view the HTML/CSS there. Let me know if you want me to post those here.