I had a thyroid biopsy in December 2007. I went to Dr. Theresa Lee, a general surgeon, with a lot of experience with endocrine surgery. She is part of the Dupage Medical Group. You can find her info here:
http://www.dupagemedicalgroup.com/doctors_in/dupage_medic...
Before meeting with Dr. Lee, I had to maintain a low sodium diet for a couple weeks, which was actually pretty difficult. Who knew how much salt is in everything?? Anyway, Dr. Lee performed the biopsy, she was quick and I was under the impression that she was very experienced with the procedure. I have to say, however, that the biopsy is uncomfortable, and you may want to bring a friend with you, especially if you are a little nervous.
Dr. Lee was nice and professional, but not terribly informative/talkative. I was comfortable with her b/c of her experience.
Good luck. From what I understand, the vast majority of these nodules are benign (mine was).