I am going to try this here, since I got no responses on the iMac hardware thread. I am trying to decide if the new iMac will work for editing HD. My plan would be to capture via the FW400 port from my HD camera and place the files on a FW800 RAID array attached to the FW800 port. I would be using FCP running on the internal drive. I am looking at the 2.8 CPU with 4 GB of memory. Early next year I want to burn Blu-ray attached to the FW400. The questions is, will this work without bus contention.