I wasn't going to upgrade from my mid-2010 MBP to the new refresh, but Apple let me return my 2010 for a 2011. I'm not a heavy user (email, internet, iphoto, imovie, video), so I usually go with the base model 15". Here's the rub, iMovie is intolerably slow on my 09 iMac, so I'm hoping to avoid those issues on my new MBP (which could replace my iMac for daily use). I do make make lengthy, hour-long, movies with hd video and pics for the kids each year, ie 4GB projects (just be glad you don't have to watch them) But when I'm working on the project, I have constant, long beachballs, and imovie is basically unresponsive. Very frustrating and almost impossible to edit once the project reaches a certain size. So what's my bottleneck - CPU? HDD? RAM? Graphics Card? iMovie itself? I ask b/c with the new MBP, I'm trying to eliminate the bottleneck. I had upgraded to 8GB (DIY) on the 2010 and will on the 2011. At some point, if prices come down, I'll do a SSD. But will the 2.0 vs 2.2 make a difference? Will the 6750M with 1GB GDDR5 make a difference on iMovie from the 15" base model. I know these upgrades on the 15" are "better" but I'm curious if I would see a difference on what slows down my computer currently. Thanks!