i've been using the creative i-trigue 3400 for my old computer (which was sold) for almost three years. now i'm searching for a good 2.1 system sound for my imac, since the default speakers just sucks imho. right now, my main choice would be the creative gigaworks T3. i've also thought about the z2300, but i've read a lot of people saying that they have just power, not sound quality. what do you guys think? another question is: should I think of buying an external soundcard to plug via usb, or the imac integrated one is good enough? kind regards.