This deal has ended.
The Bose SoundDock, the high-end speaker system for any dockable iPod (Video and Nano included), is impossible to find discounted. Literally, retailers are not allowed to cut the price and exclude them from coupons. So that is why this is worth a look. Crutchfield has it for $299 but with 30 free iTunes downloads (a $30 value) via this rebate, free shipping and no sales tax to most states. It is the best option for the popular system I've seen so far.