I got a new MBP, but I'd still like to keep using my old one too. I need to run Windows in a VM (FPGA programming software and a few other things). It turns out that I can get VMware Fusion 8 for free, but I've been using Parallels for my other VMs. Option 1: Keep using Parallels. That means I have to put in a purchase order to upgrade to Parallels 11 on the old one and install fresh on the new notebook. This way, I can just keep using my old VMs in addition to new ones. Option 2: Switch to VMware Fusion 8. I can get one free license, but I have to put in a purchase order for the second one (why is complicated). If I do this, I'll have to find a way to convert my Parallels VMs to VMware. Option 3: Keep using Parallels on one computer and install VMware on the other. The problem here is that I can't move VMs to an external drive and boot them on either computer. Can anyone give me advice on which option here to choose?