There are a few different options out there for running virtual machines on your desktop. One of those available options is Parallels, and an electronic-delivery special offer lets you get two copies of Parallels v4.0 for the price of one. That's $40 per copy, quite a deal. So, if you have a need to run Windows apps on your Mac, or you want to run any other PC-based operating system, you might consider grabbing a copy. You could give the other one away as a good, geeky Christmas gift.

Link: Parallels two-for-one offer