Apple's offering a 30 day test drive on Mac-Minis. Basically you buy one online and are able to try it for 30 days. If you don't like it you can return it no questions asked.

When the first Macintosh was released back in the 80's a guy in our dorm did this. We all played around with it for a couple of weeks before he sent it back.

This is the same guy who called all the numbers on the back of products, telling them he was unsatisfied, scamming for free samples.