[luv-talk] "Conference" microphone

Hi all, I am looking for a (most likely USB attached) microphone that I can place in the middle of a table during a conference call. It should be able to capture everone's voice while she or he is up to 2 metres away. The problem is to have it here before Thursday. That rules out buying online, I think. I haven't been successful finding a shop here in Melbourne selling such item. Maybe one of you know a place? Thanks for help Peter