I am looking to purchase a 50mm f/1.8 AF-S lens for my Nikon D5100. I would also consider the Sigma equivalent (if there is one), but it does need to be the AF-S equivalent. Also planning to purchase some Kenko extension tubes; keeping a lookout on Ebay for these, as I don't care about buying them new and I'm not in a huge hurry for them. But if anyone has some they want to sell, I do like "supporting" my fellow TPF'ers instead of random strangers on Ebay (not that ya'll aren't all technically strangers, as well...some of you are REALLY strange!). At some point, I'm also going to want a zoom lens, 55-200, 55-300, 70-300...I'm flexible, as long as it's AF-S. BUT, the zoom lens would have to be a good enough deal to make me decide to buy that right now *instead* of the Kenko tubes. Can't do both right now. As long as I'm at it, I'm also looking for a good tripod, $100-125 range, Giotti or something along those lines. Can you tell I want to buy things?? So, if you've got some decent Nikon DX stuff you're looking to off-load, now's your chance!