WP Glamour sell premium WordPress themes and offer some free themes for download.
A design company with a speciality in WordPress themes. They designed a custom theme for WordPress.com. Custom designs start from $2'000.
Ray did the design for FeedBlendr.com. It's a great web 2.0, clean, simple look.
Post a design brief and a reward, then designers submit designs in a competition format with you choosing the winner