Ohhhh man, I swear the more I hang out here the harder decisions seem to get. I was pretty much dead set on getting the 17-55 2.8 Nikkor for my D300 when it comes in (after a 50 1.8 to hold me over as a portrait lens) but now I'm debating on the 17-55 and the 24-70. While the 24-70 is more expensive, is it also sharper? The reason I've considered the 24-70 is, I may move on to FX in a few years (who knows, but it's nice to be prepared). I figured since I want the 11-16 2.8 anyways the loss of the 17-23 won't be such a big deal. Either way, what do you think? What would you do in the same situation?