I have the D80 and the 18-70 kit lens. I want the 50mm, both because it's cheap, looks to be useful, and as well gets nothing but praise. But, I also want a longer lens, at least 300mm. There's this: (Nikon 70-300mm G F4-5.6, $199) http://blackphotostore.com/english/proddetail.asp?sku=3532 199 seems pretty goddamn cheap for this lens, and while I want the range, I don't want a piece of shit either. What's the deal with this lens? Is it any good? Is there a Sigma/Tamron/other 3rd party that makes a similar lens that's better or cheaper?