If anyone's interested Parallels is apparently giving away version 2.2 of Parallels Workstation (the latest version as far as I can tell) for free!Go here!
I filled out the form (name, e-mail, company, and phone) and got the following email almost immediately...
Thank you for your interest in Parallels Workstation 2.2!
Your permanent activation key is listed below:
PRODUCT : Parallels Workstation 2.2 for Windows & Linux
ACTIVATION KEY : 3[XXXX-XXXXX-XXXXX-XXXXX-XXXXX]
I don't know how long this will be going on, so act soon!
I found out about this on this slickdeals.net thread