Both countries allow even dual citizenship, I've added my Canadian citizenship now. Commuting is no problem, I drive across, because of my current employment. You just have to pick one when you enter the US, obviously, you want to pick US as you are entering to work. I know you can't PM yet, but send me an e-mail to [email protected] as I can discuss any particulars. If you are where I think you are, I have a lot of suggestions. In short, you shouldn't have any problems.