My local Home Depot carries LED bulbs by Phillips, Cree, EcoSmart, and Feit. Is there a particular brand that you favor?
Cree. They were about $1.50 apiece, normal light bulb shape. A plastic ring just above the base.
I still have a couple of the liberal MERCURY bulbs left, just waiting for them to burn out, so I can safely dispose of them by sending them to my nearest local RAT legislator.
Check out the expected life span of the Cree bulbs. I also got some for my cars and motorcycle from ebay for about a buck apiece. (they take about 10 days to come from Hong Kong...free shipping)