... 2.0 slot? I was at my local Best Buy and I was looking at the latest ATI graphics cards and they all said PCI Express 2.1 on their packaging. I have an available 2.0 slot. Would these cards work? I had the sales/computer associate stumped, lol.

Also, I don't think my case/motherboard has the room for these 'wide' cards. Can you recommend a premium (near top-of-line) graphics card that has a lower profile? My psu is 500W. I want to really be able to crunch projects and play the latest games.