I frequently conduct conference calls with 5–15 people in a large conference room, and 1–5 people on a conference line. Lately, in the summer with the AC blasting, no one can hear anything. I tried Skype and it was promising, I think at least partly because of their noise canceling. However, in a large conference room with 5–15 people, the microphone on my laptop doesn't seem to be sufficient. I'm thinking I need to buy one or more microphones or speakerphone systems to use with Skype. The ClearOne ChatAttach 160 looks promising, but I thought I'd ask here — can anyone recommend any good hardware solutions, either standalone or Mac-compatible?