I have wanted to have a peek at Windows Vista for a while, but simply do not have the daring to install it on my well preserved home machine. Well here is a comprehensive, but slow, alternative for you techies without spare hardware. You can preview Windows Vista Business Edition via Virtual Labs. You can check out many of the key features e.g. Schedule Automatic Backups, Restore Old Files, Windows Side Bar, Gadgets and much more.
You may also want to install Office 2007 on your own machine for a 60 day trial, be warned after 60 days you will no longer be able to create, save or print files and I am not sure about rollback options.
"The whole object of travel is not to set foot on foreign land; it is at last to set foot on one's own country as a foreign land." - Gilbert Chesterton