Hi, all. First time poster (longtime lurker). After happy experiences with both an iBook and a MacBook, I'm ready to embrace the MacBook Pro. I'll be purchasing either the "base" (2.4GHz) or "middle" (2.5GHz/2.6GHz) 15-inch model depending on the advice I receive here. Basically, I'm hoping for some insight (speculative or certain!) into the performance of said models as relates to video editing/production and basic graphics work. I'm especially curious about whether the amount of L2 cache (3MB vs 6MB) has any significant effect on encoding/rendering times (if I understand correctly, encoding/rendering is mainly reliant on CPU performance -- and L2 cache is a feature of the CPU?). Also, if I'm doing simple graphics work (not 3D) in Motion or After Effects, will there be any appreciable difference in performance between 256MB and 512MB VRAM? I've read elsewhere that the extra VRAM is more or less negligible because the NVIDIA GeForce 8600M GT can't fully address it -- is this true? Thank you!