Good questions. The rendering on a G5 quad Media Composer (both Adrenaline and the 5k software version) screams. Macpro systems will be out at end of quarter. FCP can also handle multi camera, just the overall media management is not yet up to Avid speed, although Steve Bayes may change that come next April. Overall, if you like the MediaComposer and know it well, stay with the platform. The new ones work on software via firewire, Mojo (Analog or SDI) or with an Adrenaline bob. Adrenaline’s are mostly for compression and the DNxHD inputs. An FCP/AJa will be less cash up front, but not as much as it used to be. What the big factor is the learning transition curve. The Avid can work on either PC or Mac. If you’re used to the Mac and are not on a network, I’d stay that way. The Macs are actually a little less money than the comparably confirgured HP boxes.