newegg offers Parallels Desktop 8 for Mac, model no. PDFM8L-BX1-EN, for $29.95. This $20 mail-in rebate drops it to $9.95. With free shipping, that's $10 under last week's mention (which included a free upgrade to Parallels 9) and the lowest total price we've seen for this software. (It's also a current price low by $20.) Parallels Desktop enables users to run Windows on an Intel-based Mac without rebooting. Deal ends November 7.