You made out. When you get game a little and tell us how much better this does than the old. You have the second best Nvidia currently out. 7900m GS never was. Better CPU. Better RAM. And the lights!
Any other questions about what they are sending you are not sure of? I am happy for you I think you are going to be happy. I didn't want you thinking you would have to sacrifice on the screen. DeLL took care of you.
You are one lucky DeLL client! They did you great!