Newbie in the house! First I want to apologize if there's already a post on this - I've searched and searched and can't find one that will lead me in the right direction. Second, if there is a post - please lend me the link! I'm in the market for a stabilizer lens, preferably around 18 - 200mm+. Nikkor VRs and Sigma stabilizers seem to be pretty popular. If you currently use a stabilizer lens, can you answer a few questions? 1) Do you know where I can find used lenses for the d80? I realize the lenses typically retain their value... would you buy used or new? 2) What is your experience with a stabilizer lens? 3) What is your experience with Nikon vs. Sigma? 4) Do you have any b/f and after photos of w/ and w/o a stabilizer lens? 5) I've been looking at ebay and amazon for these lenses... any other recommendations?