Yo SteveK! I'm with you! What a combo that 500 will be with the D7000! Both for stills and video clips! That full autofocus in video mode is a real improvement. As for tcs, I just got the TC20E III for my D300/70-200VR and it is really good! I am very pleased with this tc. I'm wondering what it would do for your 500 on the D7000! Please let us know if you try it. October must seem like a long way off for you!