I'm thinking of buying a new iMac, but wondering if I should wait for Blu-ray iMac, yet perhaps I realize that this is irrelevant -- maybe today's iMacs are just not 'comfortable' editing HD video? Sure they 'can', I wonder if it is painful to manage HD video with today's horsepower so to speak? On the contrary, is editing SD video and burning DVDs the 'sweet spot' of today's iMac technology, and are we years away (how many?) from smooth HD editing with ease? Should I just accept that HD video editing is not ready for prime time, and therefore not wait for a blu-ray iMac and just dive in now? Anyone out there have experience editing HD video with iMovie or Final Cut Express? Is it painful or relatively easy and smooth? How much faster or smoother is dealing with SD video on the current iMacs vs HD video? And for those of you bold enough to edit HD video today, what are you exporting your final projects on? Are you down-converting to SD and burning SD DVDs? Should I just give up and stick with SD video and DVDs, realizing that relatively smooth and easy HD editing and blu-ray writing is years away? Or is the real HD experience(on iMac) just literally around the corner?