Since the MP uses triple channels to access memory, why aren't the memory slots in multiples of 3s, e.g. 6 slots and 12 slots, instead of 4 slots and 8 slots? For that matter, why did Apple limit the number slots in the Quad Core MP, couldn't Apple given the Quad Core more memory slots than 4?? Finally, would you upgrade to 32GB (8GB sticks x 4) or 24GB (8GB sticks x 3). I believe installing sticks in multiples of 3 would give me a speed boost of about 5%, but if I ever needed or could use more than 24GB, then the extra memory would more than compensate the small 5% speed advantage? Thanks . . . btw, I video edit and do a little Lightroom 3 and Photoshop. At this point I am not sure what to use to video edit. Since I am a student I can get Avid Media Composer 6 at a bargain price or I could buy Final Cut Pro X or learn to use Premiere 5.0 which I already have.