[Anthony Vamvakitis] "Anything that handles ProRes4444 and converts to 29.97 on the fly that runs thru a MacBook Pro?"
No.
Video output solutions for laptops for the most part take up the Express 3/4 card slot to give you proper output ( IE: Aja's IoXpress or Matrox's MXO2) and with the 4444 codec at 220mbps you are talking about needing drives that support playback from data that is about 85MBps.- that is beyond the capabilities possible from any FW enclosures.
gary adcock
Studio37
Post and Production Workflow Consultant
Production and Post Stereographer
Chicago, IL
http://blogs.creativecow.net/24640