Apple's site now includes details about this year's back to school promotion which includes $100 to spend to buy apps when you buy a new Mac for education. The promotion is available to those who buy a Mac with education pricing from June 16 to September 20 and can be used on the Mac App Store, the App Store, iTunes store and iBookstore.
The deal is not as attractive as in years past but does offer some incentive to students. I had been hoping that the promotion would also be extended to iPads for students since Apple is pushing to have these devices used more in schools.
The promotion is listed on the US Apple site and you may want to check the Apple site in your own country for details of any offers. As of yet, I have not seen any promotions listed on the Singapore website.