I have enough books loaded onto my Kindle Fire that I could take months off work and still not finish them all!
Games: Wordfeud, Words with Friends, Draw Something, Angry Birds, and assorted little kid games to keep my nieces busy for a few minutes at a time when they clamor, "can we play on your kindle?"
I ditched my Netflix subscription and signed up for Amazon Prime - tons of tv shows and movies, the Kindle Lending Library book (one at a time) for free, free 2 day shipping (more like 1 day shipping usually!) on anything I buy on Amazon. I'm loving it and have got my year's worth of money out of it already (and it's only April!).
Love the Fire. Best purchase I've made in a long time. I got mine in January; it was a birthday gift to myself with gift cards received. Enjoy your new toy when it arrives!