I used this coupon to get 10% off a Sony PRS-700 at Borders today --
http://f.chtah.com/i/9/276579820/birthdaycoupondec.html
15% Off the Regular Price of One Item
One coupon per purchase, per customer. Discount on electronics and video games is 10%. Excludes previous and online purchases, gift cards, periodicals, comics, special orders not in stock, and shipping. May not be combined with other coupons or discounts. Original coupon must be redeemed at time of purchase. Void if copied, transferred and where prohibited by law. Any other use constitutes fraud. Cash value .01¢. Not redeemable for cash. Valid only in U.S. Borders stores now through 12/31/08.
The cashier initially didn't think the coupon could be applied towards the Reader, had the manager take a look at it, then finally got the go-ahead to manually apply a 10% discount to the purchase.
It's not much of a discount, I know, but sure beats paying full price plus sales tax for the Reader. Hope this comes in handy for someone else!