Around July I am going to buy a Dell XPS 600. I was messing around to see about how much it's going to cost and when I was selecting the video cards I selected dual Nvidia 7900GS's, I have never heard of these and was wondering if they meant the 7900GT. I tried to search for them on websites such as tigerdirect and newegg but I get no results, but when I search for 7900GT which I know exists I get tons of results. I just want to know if they are real, or if it was a mistake because I would like to research them to know if they are worth the money. Thanks.