Need a cover designer? Here are a few that I know of. The first on the list is my own cover designer and so obviously comes by HIGHLY RECOMMENDED. The others have been recommended to me, but I can't speak to the quality of their work, their turnaround time or other items of interest. I would suggest contacting several and see who appears to provide work fitting for your own book.
Added 5/14/12 - CrowdSpring.com
eBook Covers and Formatting
Rayna Januska - email Rayna at: firstname.lastname@example.org (for an example of her work, check out this cover at Amazon: Return of the Runaway Bride
For the Muse Design