Caffeinated

Designed by Ryan Downie for WooThemes.

Genesis Theme

This is a WordPress 3.0-ready theme and is SEO-focused. It’s incredibly extensible with the use of hooks and child themes. Also, widgets can go in various places besides just the sidebar. This theme also integrates with BuddyPress, which is great if you or your clients need an open-source social networking solution your WordPress site.

Vivarelli

A simple, minimalist, Swiss graphic design inspired portfolio theme.