I'm using an early version of the Mac Mini (upgraded as much as possible) and have purchased BOSE Companion2 speakers, to replace a Koss SWS320 System with a short. I've started to use the Mac for listening to some very delicate and intricate music and while the new BOSE speakers are OK they have minimal power and I think I can do a lot better so I'm returning them. I've become really mixed up about what to get to replace them. From the research I've done so far it looks as though my best bet for higher quality without extreme price is ORB Audio - however my budget requires that I go for used or refurbished - and it looks like people who buy ORB keep them since there isn't much available second hand (at least I couldn't find any) so it looks like they are "keepers".. So I've been looking at Altec Lansing, Logitech, and a few others (used) on ebay kijiji etc. I almost purchased Logitech 540 5.1 but found out just before I purchased that the Mac Mini can't handle more than 2.1 because there's only one plug available. As soon as I'm ready to buy something I hear something else that convinces me to keep looking. Can anyone advise me about what would be my best bet to do credit to the amazing music that will be gracing the speakers.