I'm a little annoyed about the lack of a mic jack on the new iMacs. I know there are USB options but I found, at least with older machines, you take a small processing hit when using them (loose some fps in games). I have a late 08' imac and the internal mic picks up a good about of ambient room noise and you have to speak up to have others hear you clearly, where as a headphone mic or desktop one picks up less ambient and everyone in the house doesn't have to listen your one sided conversations and gaming banter. Anyone have experience with the newer 11's internal mics? Anyone know how this works? Are there other mics that can work?