Target offers preorders of Finding Dory Steelbook on Blu-ray / DVD / Digital HD bundled with a $5 Target Gift Card for $29.99 with free shipping. (The gift card will appear automatically in cart.) Assuming you'll use the gift card, that's $5 off and the lowest total price we could find. It includes four collectible lithograph cards and a bonus disc.
Also available are preorders of Finding Dory Ultimate Collector's Edition on 3D Blu-ray / Blu-ray / DVD / Digital HD bundled with a $5 Target Gift Card for $27.99 with free shipping. Assuming you'll use the gift card, that's the best deal we could find by $5. These items are scheduled for release on November 15. Both deals end October 10.