I'm thinking of buying a new iMac. I need a high end machine and I'm contemplating the best configuration. How much sense would have to max out the options, i.e. the following configuration: 27-inch iMac with Retina 5K display 4.0GHz quad-core Intel Core i7, Turbo Boost up to 4.2GHz 32GB 1867MHz DDR3 SDRAM - four 8GB 512GB Flash Storage AMD Radeon R9 M395X with 4GB video memory What I'm looking for is to balance all the components and maximize the performance. Thanks for any advice.