For those who don't know about this sort of stuff I'll give you a quick description.
Basically a normal computer hard drive spins at 7,200rpm, these drives spin at 15,000rpm and are controlled by a raid controller card which plugs into your motherboard. This card has it's own RAM, in this case 64mb of it and it's own CPU. The combination of all of this is that the drives are super fast, super reliable and can move data (load game maps/tracks etc) at a sustained and fast rate. On top of all of this I have raided them in what is known as Raid 0 or striped, this means that the controller tells Windows that the two drives are now one 72gig drive and when you move data to this 72gig drive the raid controller card puts half of the data on one drive and half on the other (that's a very basic description) so the end result is that when you access stuff from your drive, for example load a race track, load a map in a game like COD4 or Quake or something like that the data comes from both the drives not one and therefore (more or less) loads twice as fast. So your combination of 15,000rpm drives raided together is (sort of) similar to having one 30,000rpm drive compared to the standard 7,200rpm hard drive most people have. Remeber this is a very basic description of how raid works and the real results are a bit different but I'm just trying to give you an idea of how it works.
So after all that all I can really say is:
