nMP questions 1. How fast will a nMPro be running PS CS6/CC and LR5 in its base configuration ( Quad core Xeon 3.7Ghz with 12 GB RAM and the standard dual video cards in comparison to my 2007 V1.1 dual core dual chip 266Ghz Xeon MacPro running 9GB of DDR2 FB-DIMM RAM and a bUS speed od 1.33GHz? 2. Will the nMPro be able to drive my old 20" Cinema display? ( It of course is not set up for Thunderbolt.) 3. I have heard that the SSD and RAM are user upgradeable. Are the video cards upgradeable? I thought I had heard that there may be outboard video cards that could be used... but that was a while ago. 4.Can the nMacPro boot older versions of OSX from bootable external drives? I have use mostly PS CS6/CC and LR5 with NIK plug-ins.