Alright, so heres the deal. I went through this big long process of trying to get a sigma 70-200mm f/2.8 lens for Nikon. Well it never really worked out but i was lucky enough to not lose my money and the guy is refunding all $470. Anyways im looking to get a new telephoto lens. I wanna keep it under 500 dollars, and the more zoom the better. I really dont care if it an old model (would actually prefer) but i want AF and i want the quality of a "pro" lens. So what would you guys suggest?