I want to buy a laptop. Budget is 60K. Decided to go for Dell studio 17 with Radeon 3650 or XPS 1530 with 8600GT. Both with 4GB RAM. My question is......Is 3650 equivalent to 8600GT? I heard some of XPS 1530 came with faulty 8600GT previously. Is it true....?? Or it's safe to buy XPS1530 now?? Second question is.....Is buying 7,200 rpm hard drive a good option??