I need to setup a decent audio system for my office. But here is the issue. I work in a security operations center. Basicly a fairly large room with around 5-7 people in it at any given time. Normally I simply play music from my workstation really loud and everyone listens. However my boss said I could by a system ..and mount speakers on the walls.. etc.. And.... they recently gave us all Nano's with the company logo on it. So... I basicly need to setup a system where I can put speakers on the walls.. AND allow anyone in my group to plug their nano in..and play music... or stream it from a workstation.. which i think would be best.. to simply setup an airport express and let people stream from itunes. anyway ..anyone have any suggestions? the system cant be too loud (lawyers office nextdoor) but loud enough for everyone to hear..with some decent bass.