I'm wanting to get a more high quality recording at home. Currently, when I record solo instruments the silent bits are not silent (enough). I'm ready to throw some four digit money at this issue. What's the smartest way to do this? My current system; Desktop Mac, 2.66 GHz Core 2 Duo, 2 GB RAM OS X 10.5.8 Logic 8 PreSonus Firebox Mics; AKG C1000, Rhode Nt-something (?), 2 CAD's I'm guessing my main weak link is in the PreSonus' pre-amp and analog to digital conversion (?). But maybe I need high tech XLR cabels!? I'm pretty sure that what I'm hearing is NOT room noise or my computer, but could be wrong... I'd be happy to email audio samples to show what I'm talking about.