Best Buy offers Parallels Desktop 7 for Mac, model no. PDFM7XL-BX1-EN, for $44.99 with free shipping. That's $5 under our October mention (which was a download version, this one's a retail box) and the lowest total price we could find for this version by $5. Sales tax is added where applicable. It enables users to run Windows on an Intel-based Mac without rebooting.

Update: Amazon now has it for $34.99 with free shipping.