I just bought the new macbook, and i have no firewire. i'm looking to record up to 4 tracks at a time... maybe 2 tracks at a time. I have a big mixing board so that i can record drums with as many channels as i need, but i'd like to be able to output drums on 2-4 channels, or be able to record drums on two channels, and a scratch track on another. anywho... the real problem lies in the fact that i don't have a firewire connection (maybe apple will release the mythical firewire over ethernet adapter), so i'm forced to look at recording over USB. does anyone have any experience using USB interfaces that will hold up for some semiprofessional recording? thanks a lot.