Buying my first home to eventually rent it out in a couple years.

[Cory B.]

My wife and I are purchasing our first home. We have 130k in savings combined. She find a town house she loves which is new construction in a great area for 256k. My plan would be to live in the house for a couple years then buy something else but keep the townhouse as a rental. My question is should we put down 20% which makes the mortgage payment 1577 or put down a lot less since I intend to rent the property out in a couple years? Similar homes in the are are renting for 1900-2200 a month. Any thoughts ?