This forum has been great and helped make my decision to buy the new 13" base MBP. So far I absolutely love it and get very frustrated at work now trying to do multi-finger swipes on my POS HP laptop.... Anyway, last night I started trying to play with iMove and some of my HD videos taken from my Canon HF11. I was suprised and disappointed that OS X doesn't natively support AVCHD (.mts) yet, but quickly found a player on the app store that worked. However, when playing them back there is a noticeable jitter/stutter in the picture especially when panning. I tried a full HD video taken from my 7D (.mov) and that played fine w/out any of that. So my question is, what's the deal? I have to check to see what the frame rate of those videos are, but they all play fine on my deskop and other laptop (both PCs). I bought this primarily to have a single place to do all my photo/video editing and this may be a problem. Any help would be greatly appreciated!