Hi Barry,
Glad to see your poll here. Personally, I want to try these out:
F*/FA* 300/2.8
DA* 200/2.8
DA* 300/4
FA* 80-200/2.8
FA* 28-70/2.8.
And I think it would be a good idea to post the link to your store in your signature. That way, I don't need to type it every time. Good luck with the business.
Edit: I forgot to mention those fine Zeiss ZK lenses as well. I'm quite surprised to see no one brought them up. People usually don't buy these because of their high price tag and manual focus, but for renting, they have undeniable temptation of Zeiss goodness
. I always want to see how my Pentax * primes fare against those Zeiss optics. I know in this forums there are more than a few Voigtlander and Zeiss fans.