Hello all, I know HD editing has been discussed already here: http://forums.macrumors.com/showthread.php?t=474045&highlight=video+editing but I am looking for a specific recommendation. Which of the NEW iMacs should I get if I plan to do HDV editing?? I will be editing some shorts, but also feature-length videos. (I'll be shooting on Canon HV20s, in case anyone cares). I'd like a machine that can very comfortably and gracefully handle HDV editing (No, a Mac Pro is not in my budget) in iMovie and, more importantly, Final Cut. I will probably get FCE to start out, but would like a machine that can also run FC Studio/Pro easily, if my needs should outgrow FCE. I don't want a machine that can merely "handle" HDV editing, but with a lot of slow, painful contortions. I'm willing to pay extra for an iMac that can do it effortlessly, but at the same time, I need to be sensible, and I don't want to overbuy. I'm sorta leaning toward either the... 20" 2.66 GHz w/ATI Radeon HD 2600 PRO with 256MB memory for $1499 (it seems a shame to get the low-end with the puny gfx card), OR 24" 2.8GHz for $1799... but I haven't completely ruled out the lower or higher end models. In either case I'll bump up the RAM to 4GB via Crucial.com or wherever. I'm sorta leaning toward the 24", but then you get into the whole thing where for just $150 more you can get the NVIDIA gfx card w/ 512MB (so, hell, why not?), and for just $200 more, hell why not bump the processor up to 3.06GHz? Bump the HDD to 500GB for a reasonable $50 and then you are at the top-end specs/price-point. And I'm wondering if that ends up being overkill? I don't plan on doing ANY real gaming, so is the NVIDIA gfx update even relevant (for HDV editing)? Would the processor bump from 2.8GHz to 3.06 be noticeable? Also, for reasons too boring to mention, I NEED to bring home an iMac FRIDAY evening, so it looks like I'll be heading to the brick & mortar Apple Store. Will that limit my options? (vs. ordering online and building-to-order). Thanks. And PS-This will be my first Mac, not counting my gf's G3 iMac.