I would go with this motor combo that RAZ recommended. This would give you the most power for the dollar spent. Just remember that you can always back off the throttle. Fly at haft throttle to make your batteries last long.
http://unitedhobbies.com/UNITEDHOBBI...4.7_Prop_Combo
Since this is your first plane make sure you get help from someone who knows how to fly. Next thing if you crash this plane I would go here and get their trainer plane combo. It's made out of EPP foam that doesn't break when you crash.
http://stores.knbhobbies.com/-strse-...Categories.bok