worldwise

Hi< I want to make radio on an apple macintosh ibook! So I need an MD that can record with an external microphone and with a direct output by a usb cable. Is a Net-MD the best choice in my case? Does anyone know if there is also software for the mac osX that makes it able to copy recorded things very fast by usb cable to my computer? (is there a mac version of sonybla(stage?) 3.4?) Please help me out. Thanks, hugs, reggie