Arrives before Christmas. Walmart with Donner Music has the Donner DED-300X Electronic Drum Set on clearance for $500 - $50 off coupon (click checkbox) = $450 with free shipping. Here's a very detailed review. 

• Two 12-inch crash cymbals /  two 10-inch Quiet-Mash pads
• 900+ sounds, 100 kits, 50 demo songs included.