as of now i have my mbox hooked into my two monitors. the speakers that come on the new imacs are just crap and so i need to get some computer speakers. my two monitors could use a sub and im try to figure how i can incorporate a 2.1 system with the monitors. ( just the sub). bad idea? whats a good idea for having a rocking computer sound setup, as well as having my protools setup give me more bass.