What's a good lotion for dry skin?

Once I get into bed after showering and applying lotion, my legs, hands, and feet feel so dry and irritated. It may be because of the sudden change in weather (much colder now) and I can see small sections on my skin that are especially dry and flaky. I was thinking of finding body butter, baby lotion, cocoa butter, or a cream.

Which do you recommend would do the best job?
I already maintain a decently healthy diet and drink plenty of water, but are there extra things I can do to help keep my skin hydrated?