You can call Fields Hobby, 716-681-6440. Ask for Jay and tell him Chris from RCNitroTalk sent ya. Not sure what price he can get you one for but it should be pretty damn competitive.
Rob- What BAD have you heard about the Sport? I know quit a few guys that run them and like them a lot. Yes, its not a pro model or a Kanai, but for an RTR its pretty damn good!
Whether you go with the Storm or Sports 'RTR' models, you will want to do some upgrading with either one.