The i3 will be fine for CPU. I am running an i3 530, with a mATX Asus P7H55M or something like that, with 4GB G. Skil Ripjaws, an ATI 6770, an LG Blu Ray/HD DVD player and 4 TB of HDD space and a Corsair VX450. Now I am considering a NAS box. We'll see what happens. Your newegg cart looks fine though. It should run like a champ

Edit: 430w PSU will be fine as well.