I have a G4 17'' powerbook and am thinking about upgrading to a MacBook Pro 15". I am weighing the cost difference between the two 15" models vs. performance. $500 price difference is significant to my budget. The differences seem to me to be in three areas: Processor speed: about 10 percent Hard drive capacity: 40 gigs Video card: NVIDIA GeForce 8600M GT graphics with 128MB SDRAM vs. NVIDIA GeForce 8600M GT with 256MB of GDDR3 SDRAM Processor and Hard drive issues seem minor but I don't know if the video card is a significant item or not. Any thoughts or experiences will be greatly appreciated. I don't really overwork my powerbook now, so I am sure the MacBook Pro will be over kill for my purposes. Jens Jens Selvig ...lost in Montana... lstnmt(at)bresnan.net