Overkill on the amount of RAM, no program will use 4GB let alone 8GB. You would be better off going with 4GB and getting better timings. Take a look at the one below for $115 and take the savings and put in a better PSU or the UD3 motherboard.
You should go with a i5-750 instead of the i7-860 and use the saved money to get a 5850 instead of the 5770. With that configuration, you'll be able to play whatever you want at a resolution of 1920x1200.
I don't know if you want to overclock or put an other video card later. I don't know if you prefer having a bluray. We need to know that before choosing a case/PSU. You have to count a good $150 for these composants.