Hi, i'm kinda new to the music recording/editing scene, and I recently got a 13.3in macbook with the 2 ghz cor 2 duo in it. After a short time I noticed that I have a bass and this shinny new computer so I put 2 and 2 together and deiced that my friends and I need to hang out more to record some stuff. this leads me to my question. What equipment would give me the most bang for my buck, and would be the most helpful for a handful of up and coming musicians? I have about $500 to spend for now hopefully more very soon.