I would contact a reputable seller like Ka-planes (
www.ka-planes.com) for suggestions. I got a lot of useful information from Mike, Jr. when I was shopping for my first heli. I ended up buying a Walkera HM5 #10 coax from them and it has been the perfect beginner heli as far as I am concerned. It's easy to fly, cheap to repair and comes with a lot of upgrades standard.