I'm running a second gen i3 with 4 gigs of ram and windows 7 ultimate 64 bit on a 120 gig ssd. I have an AMD 270x running ALL 3 screens in my cab(48" 1080p, 32" 720p, and 17"). Everything runs FLAWLESSLY in my cab. I don't have any toys running in my cab other than LED buttons. Ymmv based on your set up, but if you get option 1 it should definetily run everything just fine. Option 2 is going to be a little over kill with an i7 but i would upgrade the gpu, but thats just me.