I've been a lurker for some time and now need has flushed me out into the open!

I am looking for a tricylce for my 16 month old. He's pretty tall for his age (about the height of the average 2 yo). So I'm pretty worried about getting a trike that won't fit him or that he grows out of by the end of the summer. Any suggestions? I've been eyeing the kettlers, but which one? And more importantly are there any deals?