I'm going to be getting a pb pretty soon. Most people here say that i should get the 1.67Ghz so i can get the 128mb vram. Could i just get 64mb vram, then maybe, upgrade after a year or so? Just askin' cause the 1.5Ghz is impossible to upgrade. Also, when Tiger comes around, could I borrow the cd from somebody else? Or is that impossible to do? I know poeple can do it with iLife 5. thanks for your help!