So right now I have a 500gb and with all my games its getting to the point where I need to upgrade. I decided that I would go with a raid setup since I have never done RAID and wanted the experience. So what do you guys think would be a good bang for my buck in regards to raid setup. I want a hard drive that has great speed performance with a decent capacity. I was thinking about doing 2 Western Digital 640gb Black's. I am willing to spend a little more if the performance would be worth it. thanks!