Best Theme For My Purposes

Hello,

I am looking for either a theme, or a plugin that will allow me to create a website that does not reload, but each page is a panel that slides in, while the current page slides out (much like coda slider). I would love for there to be the ability to create a main menu, when a main page is clicked, a sub menu is revealed, and when the sub page is clicked, the panels slide, showing the new content.

I can't seem to find a good solution for my needs. Does anyone have any suggestions?

Thanks!