I reckognize some buildings that are taken from previous episodes, and the air traffic is probably recycled as hell. With today´s CGI they have it much easier than, say, six or eight years ago (for TPM and ROTJ SE). Air traffic only needs low-resolution models, anyway.
That leaves other buildings and the mattepaintings.
I presume you would need a powerful computer to withstand the dual screens?
the computer specs you posted awhile ago, did you get the computer made to handle the dual screens, or any computer of power like that able to handle them?
Your Graphics Card determines whether or not you should have the ability for dual screens. To enhance the experience though, a good amount of RAM (~2GB) and a 3.0Ghz processor or so wouldn't hurt.
I run a Nvidia Geforce FX6800 with 2 1GB Kingston sticks on two Viewsonic VX900's.
It almost looks like Anakin is looking at the deathstar trench with the big gap centerframe.