I was in the Ontario Mills Lego Store yesterday and they had several stacks of damaged boxes at 20% off. Not a great deal considering Amazon's prices are about the same. However, if you've got VIP Points to burn (or want to earn some), it is a fun field trip.
9490 Droid Escape
9498 Saesee Tiin's Jedi Starfighter
9489 Endor Rebel Trooper™ & Imperial Trooper™ Battle Pack (They had easily 30+ of these)
9491 Geonosian Cannon
9515 The Malevolence
9474 The Battle of Helm's Deep