Hi Everyone, I've had this new MBP for just over two weeks now after my early 2008 MBP was stolen. My primary use for this machine besides the usual Web, Email and document creation is Music Production. I use an RME FireFace 400 as my audio interface and had no issues with my previous mac - however after finally getting my hands on a FW 800-400 cable from belkin I thought there would be no issues. Alas this is not the case. All latest drivers are installed however when audio is sent to the FF400 it continually resets causing only tiny snippets of sound to come out (every 4 seconds approx) After speaking with the Australian importer and authority on the RME FF400 this was the conclusion that was presented to me by him and RME germany. "The recent firewire audio interface issues on the new iMac are now a problem on the new MBPs. According to RME this is due to the Agere fw chip used on those machines which causes a firewire bus reset when starting playback in isochronous mode. The problem also manifests on Motu and other devices." I am told (by the RME importer) this is not a problem that any software/firmware update can fix as the problem is inherent in the Chipset itself. Lucent (Agere) = No work with many major music peripherals Texas Instruments = Smooth sailing Check your chipset before you purchase by pressing CMD+S on boot-up Hope there may be a solution for this without having to buy other hardware to offset this problem.