Hello all, Pardon my stupidity but what speakers generally work for Macs? I've decided to buy a decent set of 2.1 speakers and have chosen the Logitech Z-2300. I was just wondering if they would work with my G4 iMac (Flat Panel, 800mhz) and Alu iMac? If you guys could enlighten me before I pull the trigger, it would be great! Thanks in Advance.