I plan on buying a 17 inch MBP in a couple weeks and plan on using it basically for surfing the web and Logic Studio. Will I really need to ever switch to the 9600 card? Will I notice and kind of difference in performance? Will the 9600 only drain my battery more than the 9400 while not noticing any difference between the two on what I plan on using my MBP for? Could the 9600 be more useful once Snow Leopard comes out?