This is Balanced, a free, fully standards-compliant CSS template Design by CSS Templates For Free This free template is released under a Creative Commons Attributions 2.5 license, so you're pretty much free to do whatever you want with it (even use it commercially) provided you keep the links in the footer intact. Aside from that, have fun with it :)

This template is also available as a WordPress theme. The photo on this template is from PDPhoto.org.