Try this person. He's done a reasonable job on work I have seen:

http://fiverr.com/experthq

I would try others on fiverr.com. Spend your $5 bucks on 3-4 different designers and you're still ahead and likely to get something good out of it.

Note that, if you want the raw files (psd, etc.) you'll pay a little extra ($10 extra for the person above).