Wordpress theme w/ Vertical/Left Nav and fixed header (example w/in)

Hey everyone, total nube to the forum here…I’ve been pulling my hair out recently looking for a website that can basically do exactly what Commune’s site does (http://www.communedesign.com/portfolio/verve-coffee-third-street) . . . have a left menu and header that are independent of the main content, wherein the main content scrolls w/o effecting the menu or header. Please help! Thanks.