I just bought a refurbished dual-core i7 Mini with a 500GB HDD. I'd like advice on the best configuration for the following uses: 1. I need Windows for my employer's VPN. Should I boot from an external SSD in a Thunderbolt enclosure or add a SSD to the Mini chassis? Should I have separate SSDs for OS X and Windows or is one SSD fine? 2. Virtualization or Boot Camp for Windows? My VPN requires a smart-card reader with custom drivers, plus the typical Entrust and Oracle software. Will Boot Camp be more reliable or can Parallels/VMWare handle custom drivers and a VPN? 3. Thunderbird e-mail archive. Should I put my e-mail folders on the HDD or a separate partition on the SSD? I will back up the folders with Mozy so I just want to avoid OS reinstallation complications. Thanks!