1. Say I partition 200 GB of my HD (a single 500 GB drive) for Vista and sometime down the road, I do not want it anymore. Can I delete Vista and give that space back to Leopard without having to reformat the entire drive and reinstall OS X? 2. Approximately how long does it take to install Vista on a Mac (Mac Pro), including the time for partitioning / Boot camp / whatever else is necessary?