Is this Newegg setup the best possible for me?

I'm drooling. this will be a fine machine for your purpose, and one heckuva bang for your buck. the 750w power supply will do just fine by it. personally, i'd go with the nvidia card, because i think they are worth the extra, but, it is your choice, and still a fine card. overall, i'd give this system a 9/10 on the affordable power scale.