Dust is a theme I made for this here site. I recently open sourced it and stuck it on BitBucket. Feel free to use it however you want: commercial, personal, whatever. Browse the repo here.

It’s great for portfolio sites due to its eye-catching slide show widget and attractive ’tile’ display. Check it out here.
Features:

• Several widget areas allowing for easy and complete customisation
• CSS3 Flipping tiles
• Semantic code
• Seven accent colours
• Easy management of portfolio items via use of custom post types
• Side-scrollable drop down menu