Anybody have a stand-alone chest freezer?

We've got an LO on the way, and all of the "freeze extra meals! Freeze pumped milk!" advice has only served to make me realize (again) that we're overstuffing our tiny freezer already!

If you've got one, how big is it? Is it worth it to get a bigger freezer (we're thinking about a 5 cubic foot one, but we've got space and could go bigger), and also is it worthwhile to pay more to get an Energy Star model? Has it made a difference in food storage, breastfeeding while being a WOHM, etc?

We're still in research mode, but any experiences from Bees would be welcome!