Nikon 200-400mm + TC1.7 or 300mm f4 + D300/D7100

Marcelo,

As you know, I'm a new convert to Nikon so I haven't personally used a lot of Nikon glass.  I do know a shooter or two that uses the 200-400 for wildlife and for them its their go to lens.  I guess it depends on what you shoot.  For me the conveinience and flexibility of a zoom for the wildlife I photograph is essential.  $4000 is a great price for this lens especially when you've had a chance to check it out.  That being said, its a lot of $$ too.

Regards,

Archie