I'm using a sennheiser (spelling?) mic which cost me about 150 I believe but my partner uses an Andrea which was my old mike which works about as well at less than half the cost. I agree with David I went from dragon med 7 to 9 to 10 - bit the bullet although since I upgraded it wasn't quite so painful but was worth the upgrade. 2 things - mic placement is critical if the mike is not in the proper position in regards to your mouth accuracy will suffer and the 95 to 99% doesn't sound like much but it is. Just when u trust Dragon it will substitute a word with no logical reason case in point -patient went to the ER and had a shot of dying (demerol) and felt much better - caught that one but there are several other ones I missed. That being said if u work with it some it speeds things up greatly