[SOLVED] Horizontal Scrolling

I've been looking at non-standard designs for a more creative approach to portfolio websites. Is there a way to get Atahualpa to scroll horizontally indefinitely (similar to the vertical scroll)? I see some artists are doing this now.

I was thinking of using Flexcroll scripting to do it but can it be as simple as making the layout some obscene size? I think that would work but it would be a set size and I would like the scrollbar to be proportional to the content.

Something like this:
http://www.lauraflippen.com/