Apple appears ready to kick off its annual Back to School promo, continuing where it left off last year by offering a $100 iTunes Store gift card with the purchase of a new Mac computer. Additionally, and for the first time, student who purchase an iPad during the promotion will also receive a gift card--this one for $50. The credit is good towards anything you can buy or rent on iTunes, the App Store, the iBookstore, and the Mac App Store. We expect a bunch of new Mac hardware to be announced later this morning during the WWDC 2012 keynote.