[Costco] Costco - Sunbeam LED Bulbs 7 watts / 3 bulbs $19.99 - $5 OFF WITH OPA COUPON
They're pretty bright and at the unit price of $6.66 it's a good deal. I use these myself and I have no complaints. They dim very well.
October 10th UDPATE: Now the price is even lower with the $5 OPA coupon.