I am looking to purchase a mixing board style interface that doubles as a stand alone mixer for use with Logic 8 (later 9). I'll use it in a school situation so I want the kids to have more of a "hands on" experience with the mixing board in Logic and also to use as a separate mixing board if needed. It HAS to be firwire. I have seem Mackie Onyx but I hear they have serious problems and then there's Yamaha N8 or N12. I have the M-Audio Project Mix but it can't be used as a separate mixing board. Major bummer! Any suggestions?