Amazon has the Dyson DC25 Ball Upright Vacuum Cleaner for only $319.99 (36% savings). This is a great price if you want to get a new vacuum. This is a discount you usually only get on refurbished models.
If you prefer Walmart or maybe have a gift card to burn. Walmart has a the same model with a little bonus. They are offering the Dyson DC25 Bagless Upright Vacuum Cleaner with Bonus Accessory Kit for $449 + 97¢ shipping.
I think the smart buy is at Amazon–tee hee!