Robert Lindstrom of DesignChapel has built himself an impressive portfolio, with work on the "Got Milk?" campaign, Vodafone, and Coca Cola's M5. It's not just a list of high-end clients... the work is slick, fun and innovative. I've been following Designchapel for a long time, always fascinated by his work on the "original site" available off the main page. I'd recommend checking out both sets of projects, and the original site is a great example of a solid portfolio experience.