Hey all, I have been shopping around for my first audio interface that I will be using with my mid 2008 macbook pro 13'. I want to step it up a notch from the built in mic and usb mics. I will be essentially using it to record guitar ideas and to record songs in garageband for fun. I don't see myself needing to record more than one instrument at a time for now. All I am really looking for is 1 or 2 XLR inputs and a DI input for bass and the ability to monitor what I record. So far I've been eyeing the M audio fast track pro and the Tascam us600. Anybody use these? If so, how do you like it? If not, can anyone make some more recommendations within the 100-200 dollar range? Again...this is just for fun. I am not trying to produce a platinum record here.