There are plans for that yard already. I'm putting a willow tree in there somewhere because I like trees in general and willows in particular.
One of our goals is to catch and store as much rainwater as we can from the roof and store it in an underground tank for irrigating the garden and maybe the lawn. I'm guessing the footprint of the house is somewhere around 1000-1200 square feet. If my math is right, we could catch upwards of 20,000 gallons of water a year. I don't think we need quite that much.
We are thinking that next year we'll tear up the grass, level the yard a bit, bury a couple of 250 gallon tanks to store water and rig piping, then replace the grass with something that doesn't require much water.
re-cur-sion ri'-ker-shen n: see recursion