first off, 10,000 minus 7,200 = 2,800. Not 3,800. Hehe, sorry that was pissing me off. In my opinion RAID is a much better option, but setting it up can be a little tricky if its your first time. You have to make sure you have the RAID drivers on cd so that when your instlalling windows it will ask you if you have any drivers to install previous to the whole windows setup, or something along the lines of that. To answer your original question, the only real difference your goign to see between a 10,000 rpm harddrive and a 7,200 is that the 7,200 in terms of gaming is that the games themselves will load quicker. Your not going to see a peformance increase in your games in terms of fps really.