Option A: 14-inch iBook, 1.2 GHz G4 with RAM upgrade to 512 MB ($100) and ComboDrive upgrade to SuperDrive ($200) is $1,800. Option B: 15-inch PowerBook 1.5 GHz with 512 MB RAM and SuperDrive standard is $2,500. Use: I haven't had a Mac in 10 years, and I want one primarily for working iLife apps at home and on the road. I will probably be doing a lot of video, and the only thing I've edited video on before was Adobe Premiere (a greedy app) on a PIII 933 MHz Gateway (a needy machine) so I'm not used to speed. So here's my question: Is a slightly larger screen and a 0.3 GHz speed gain worth the $700 difference? Are there other PowerBook advantages I'm not considering? Talk amongst yourselves.