I am new to home recording and just got ahold of Pro Tools 7. I was told that I am also going to need an audio interface (like an mbox) for the program to work. Is there any restrictions to which audio interfaces I can use? What are the good ones that won't break my bank account? Is there any other hardware that is ESSENTIAL to recording? And what are the advantages of recording vocals/acoustic guitar through a mic going through your audio interface versus one of those new USB mics? Thanks for your help! I know these are really basic questions, but you've gotta start somewhere!