Thanks guys! I appreciate the kind comments!
Chris: The 70-180 micro is one tough lens. I really like it. I just picked up a Sigma 180 macro, which is about half the price of the Nikkor. Focus is much faster and quiet on the Sigma and it has almost double the working distance, so it's a cool lens for chasing bugs. But, it's a prime, not gonna replace my Nikkor. I did about 100 shots with the Sigma tonight. It's a very sharp lens as well. It's a little smaller than the 70-200 F/2.8, but larger than the Nikkor 70-180.