newegg offers Parallels Desktop 6 for Mac, model no. PDFM6XL-BX1-EN, for $30. This $30 mail-in rebate cuts it to $0. With free shipping, that's $30 under our August mention and the best total price we've seen for this previous version. (It's also a current price low by $33). It enables users to run Windows on an Intel-based Mac without rebooting. Rebate expires December 26.