I just made an offer to a private party on a mint condition, one-owner Nikon 28-70 f/2.8. I made him a fair offer, which was probably stupid of me :?. If he accepts, I'll be listing my Tamron 28-75mm f/2.8 on the "for sale" forum. I really lust for this lens. It's big, heavy, and built like a tank... a perfect complement to my 80-200 f/2.8. If I get it, all I'll need is a 300/4 to complete my dream kit.