I know, this is the same old discussion. But here goes. I currently have a 15" G4 Powerbook 1.67 with 1.5gb ram, and the 128mb vram. I love this machine and if it wasn't for my 8k+ pictures in iPhoto and constantly running apps like Photoshop, along with the normal (web, mail, chat, itunes) things get a bit slow. I'm really interested in running Aperture along with generally increasing the speed. I'm also interested in running Vista using bootcamp. Also, is the new LED screen bright enough to go with a glossy screen? My current G4 PB is obviously a matte screen and I am fine with it, but I do love the way the glossy look while inside, I'm just concerned with being able to use the MBP outdoors. How much speed increase will I see going from my Aluminum G4 to a new 15" C2D 2.2ghz? Is it worth spending the $1799 on? Or should I just get the last gen MBP refurbs? (note, I do get the student discount, hence why it is $1799).