Son's first real clubs - righty or lefty?

I have a bit of a dilemma - hopefully you all can help! I'm 30, been playing golf with my dad for as long as I can remember. Even though life's hectic, we still manage to get a handful of rounds in each year.

I have a son who just turned four in August. Last year we bought him a set of clubs... Not the silly giant headed plastic clubs, but metal shaft, plastic head clubs with rubber grips. He loves them... He's always wanting to head outside to practice. The funny thing is that for the life of me I can't get him to hit righty! He turns around lefty and hits the ball with the back of the club! He's got a great (for a 4 year old) natural lefty swing and about trips over himself when I try to show him the "right" way to do things. He does everything else right-handed, even swinging a baseball bat.

For Christmas, we want to get him a legit set of junior's clubs appropriate to his age. I feel like I should just get him some lefty clubs and run with it... I don't care if they cost more or are harder to find as long as he enjoys them! Is there any reason I should get him more righty clubs and get him turned around? I mean I ought to just roll with whatever he is comfortable doing, right?

Any suggestions on a good set of clubs for a 4 year old?

Thanks!
Jeff

I would get him Lefties. Look at US Kids Golf. Good fitting for all ages.
http://www.uskidsgolf.com/index.cfm

Get him lefty's. The only drawback is that there's less lefty equipment out there, so as he gets older his choices narrow.