This forum has helped me decide the 15" MBP is the best computer for me - Thanks. But I am not tech savvy enough to know if there would be a noticeable difference in performance between the 2.53 GHz (w/3 MB L2 cache) and 2.8 GHz (w/ 6 MB L2 cache) MBP. My question is will the extra 3 MB L2 cache on the 2.8 GHz processor make a noticeable difference? My computer is used for "normal" home use: internet, watching movies, iTunes, family photo and video editing, some business applications. I may be adding Aperture and Final Cut Express if iLife is too basic. I also tend to keep computers long term upgrading myself along the way (current HP is 8+ years old...I know it's just a paper weight now!). Any help is appreciated. Thanks again.