It would be helpful for the hardware experts here to know what your budget limits are, if any. Also, if you are looking to buy a laptop or a desktop computer. Also if you have any platform preferences (e.g. Mac or PC). Also what version of PS?
Dell Precision T5600 or T7600 workstation outfitted with dual Xeon E5-2687W processors fully configured with the max hardware options.
Okay, so that costs well over $10,000. But you did say "best" and "quickest".