I still don't know why you want to buy a new system. A core 2 duo is entirely acceptable for normal use cases. Putting in an SSD and adding some ram might be all you need. My neighbor bought a Dell I recommended and it cost him $420 and he got a core i5 and 8GB of memory. He dropped in an AMD 7750 and was playing Diablo III on high. I have many doubts that you need that much horsepower from your computer. Remember that iPads are capable of surfing the internet with a CPU that's from a telephone. The emergence of mobile will keep PC requirements down for the foreseeable future.