Aluminum Gitzo or Carbon fiber other?
$450 budget for legs only. Go with a series 3 Gitzo aluminum systematic or with a non-Gitzo carbon fiber tripod such as Feisol, Manfrotto 0555cx, or others.
Basically, do the benefits of carbon fiber far outweigh that of a solid aluminum tripod with regards to vibration. Weight not an issue. Biggest setup D600/D7000 and 70-200 2.8.