Through 9/20, Apple is offering a $100 gift card with the purchase of a Mac as a back-to-school special for students, teachers, and educational staff. Purchase a MacBook, MacBook Air, MacBook Pro, or iMac through the Apple Education Store to get the gift card redeemable at the iTunes Store, the App Store, the Mac App Store, and the iBookstore (the card is included with your order). The Education Store already has prices discounted by 8%, and that includes reductions on Apple's refurbs (go to the Education Store and click "Refurbished Mac" in the lower left side of the page). Additionally, you can get a free printer with mail-in rebate. Shipping is free and most states pay sales tax.