I am looking for a new computer to run CS6 and Lr6. I currently have an unbranded computer (i7, 16GB) with ascreen. The computer has intermittent failures, always at the worst possible time. However, I am finding it hard to find a branded desk-top, other than Macs. The I had been considering has just been discontinued. What desk top computers are people currently using for photo processing, the more recent the purchase the better. Thanks!