Todd,
We just purchased the Frigidaire 7.2 c/f model chest freezer. Not sure how small you want to go, but in this size range there did not appear to be any Energy Star models to choose from. The energy efficiency card clained it should cost about $35 per year to run, which seemed fine to me.
It's certainly made keeping food around the house much easier. We took delivery of a share in a steer last week, and it's comfortably frozen right now. The freezer on the top of our fridge is now freed up for ice, open containers, and leftovers.
If anything, I probably should have gone with a larger size. 7 c/f freezers seemed to be +-$200 at big box stores in this neck of the woods.
Hope this helps.
Jesselp
Edited to add:
Forgot to mention - I got a manual defrost model. All the reviews said they use less energy, and were much less prone to killing your food with freezer burn.
I figure once a year during the winter I'll choose a cold day, move the food out to the deck, and defrost the freezer. No biggie.
Edited by Jesselp (12/22/09 01:20 PM)
Edit Reason: More information