I recently purchased a used one touch 80-200 f 2.8 ED AF Nikkor from a reputable online retailer for $465 + tax. Lens is in pristine condition and photos look great. As a newcomer to pro-grade zooms, I was a bit surprised by the shoulder crusing weight and by how difficult it is to stabilize this lens on a tripod (gitzo G1320 tripod, Gitzo 1275M ball head, stroboframe Quick release, Nikon D70), as it does not have a collar. I have seen that the Bogen 3420 lens support has good reviews, so for $65 I would consider buying one. To cut to the chase, I am seeking an opinion on whether this lens is worth the price or, is it rather worth forking out double the money to get the 80-200 AF- D that can still be bought new. Bonus questions, has anybody had any experience using a polarizer on the lens, or experience shooting sports? (both are issues since the front element does rotate during focusing, and AF seems a bit on the slow side). Thank you in advance, and please forgive the long posting!