Thanks HDNitehawk!

I have never bought a lens on ebay before, I just assumed that sellers with up to 100% positive feedback could be trusted to a high degree. You were lucky to get yours at B & H for only $3800. The one they sell now is $5200. KEH does not have it right now. I bought a lens from KEH before and was very satisfied. I do not want to spend more than $4000, but I also don't want to gamble with that much money and risk getting a "dog". Darn, what do I do?

Hilde