hey guys, i'm looking to get a midi controller. first off i do have a question... do i have to have an interface in order to use the controller with garageband? can i just plug it in via the usb port and away i go? eventually i'll also be using it with pro tools and reason, but for now i want to avoid dropping money into an interface if i can. since i'm in a dorm room i'm looking at a 25 key one... mostly this one: http://www.musiciansfriend.com/product/MAudio-Axiom-25-25Key-USB-MIDI-Controller?sku=706313 does anyone have any experience with this controller, or can anyone suggest another one? thanks in advance.