1. Do not get two 7900GT right now, get one 7900GTX and then upgrade in the future. Or get two 7900GTX if you can afford it.
2. I would go with the Viewsonic monitor
3. I would get this hard drive instead:
http://www.newegg.com/Product/Produc...82E16822144701
with that hard drive you can combine it with a NEC burner, so its cheaper