I recently came across a company called Niro1.com USA, and they sell single speaker, single subwoofer 5.1 surround sound systems. I own a Dual 2.5 Ghz G5 PowerMac and I bought one of these puppies and connected it up via TOSlink (fiber optic) and it is one of the best combinations of products I own. Basically, the one speaker box has 5 speakers built into it. These speakers broadcast sounds in specific phase, resulting in cancelation of certain sounds at certain distances from the speaker. Essentially, you get an amazing sound field that rivals true 5.1 systems. They even sell a mount that can attach to your monitor to hold the speaker right in front of you. I can't explain how perfect this product is for anyone who wants a great sounding audio system for their G5 computer, and don't want all the bulky speakers. Even the colors match: all brushed aluminum housings. Since the G5 and the Niro systems have the built in fiber optic connections, it is no problem getting 5.1 sound out of DVD Player. Even stereo music out of iTunes sounds incredibly pure and clean since it is all digital. I was skeptical at first as to how good the sound quality could be with just one speaker, but they offer a 30-day full refund guaruntee. Go ahead and give it a try: I did and there is no way I am returning mine. Well, check out their website at http://www.niro1.com/en and please feel free to email me if you have any questions about it and how it works with the Mac.