I'm getting a new-old gaming rig at the weekend - it's a hand-me-down desktop. It's Core 2 Quad 2.3, 4GB RAM, with a Nvidia GeForce GT 640 (1GB) graphics card. Will that be adequate to run M2:TW (and thus EBII) on it? I'm mostly concerned about the 2.3GHz processor - is that fast enough?