oid or new

hi all I was wondering if you could give me your opinion as to which camera might suite my needs best. I primarily take photos of nature, people, and recently dabbling in sports events. I am currently using the Nikon D80. My next purchase might be either the Nikon D7000 or should I go to the FX and get a D2x my max is 1000 . I would appreciate you taking time to share your opinion with me. Thanks. you.