I have a 74gb Raptor split into 2 partitions, one for Vista the other for my games. I've got the opportunity to pick up another 74gb raptor for £40 off a friend. How much of a difference would I notice moving my games off onto the 2nd drive and leaving the 1st just for Vista/programs/docs etc? I don't really want to raid them though unless I somehow would not have to re-install Vista and all my stuff.