I am very near deciding on a purchase for a final cut system. I have been editing on a pc for a while now with full HD video and since I am nearing the end of a feature length project I can finally afford to switch over. What I am wondering is how suitable is the core i7 imac for editing full HD in the final cut studio? Does final cut take advantage at all of the 4 cores and 8 threads? Are external fw800 or gigabit ethernet storage good enough for prores 1080p video editing? Just how much worse will the performance/renders be on the imac compared to an 8 core intro mac pro? I am trying to get a good gage on where my money will be best spent. Thanks for any help / shared experiences!