[catone]

I am lucky enough to work with Kelli Shaver on my startup. She's been a friend for 10 years, and is an awesome designer -- of everything, but especially of icons.

She recently took down her icon site, but still does icon work for people. Her freelance portfolio is here: http://www.kellishaver.com/

[swombat]

Ditto for that recommendation. I've known Kelli for many years and she is a talented and smart designer - as well as an all-round nice person.