Hey all, first post here ... : Recently got Logic Studio Pro on my 13-inch MacBook Pro 2.53GHz + 4GB RAM. I'm looking into getting an audio interface, I have M-Audio MobilePre and have used it in the past but looking to "upgrade". I don't need more then 2 mic inputs and don't care if it's firewire or USB. I'm also running a Lacie drive on the fw800 bus but I can move that to one of the USB ports if I need to hook up a FW interface at the same time. I was looking at Apogee Duet, TC Impact Twin and similar ones around and up to $500. Any recommendations and suggestions would be great, I will mostly record vocals and guitars with this setup. Any performance considerations I need to think about while running this alongside Lacie drive? Thanks to all in advance!