This is a follow up on the handheld/desk mounted Sennheiser, If you do not have an Andrea USB pod, you should add one for use with OS 10.2 or higher: http://www.emicrophones.com/microphones/prod_details.asp?prodID=003&subcatID =3 Martin Markoe, eMicrophones, Inc. The best microphones for Speech Recognition See us at: http://www.eMicrophones.com/index.asp See, "Key Steps to High Speech Recognition Accuracy for the Mac" at: http://www.emicrophones.com/docDetails.asp?DocumentID=39