Hello, I am buying a new pb this week and am not sure which way to go. Here are my options. 15"pb - 80gb hd, 512mb, 128mb video card 12"pb - 100gb hd, 768mb, 64 mb video card Where will I notice the difference in the video ram and card type, and can someone please give me some good advice as to portability for both (screen size, sharpness, etc.). I will be using it mainly for school (office apps., online research at Starbucks, library), iTunes and video editing (home videos using Final Cut). No gaming. Thanks for any help. There is a big cost difference and I could use the 12" with my 17" display when at home. If it helps, I am moving from a 4 yr. old Dell with a 2.0 gb hd, and 96.0 mb ram. I know, I should be ashamed. I had to load iTunes on my parents laptop, because my Windows 98 wouldn't load it.