Nice camera!
The fella that owns lensrentals.com has a blog on that site and in his blog "Equipment / Reccomendations" in July 2010 he wrote an excellent overview titled "Lenses: Don't collect the whole set." Skip the part about his path if you are just starting out. Too painful.
You can buy a one lens does it all (not really) and take lots of pics. A Sigma 18-250 is a very reasonable $350 now.
Bhphoto is a highly regarded seller.
The reccomendations above are all very good. The Nikon 80-200 f2.8 is quality glass and used holds its value. The three lens Tamron set has you in f2.8 glass thru the range from 10mm to 200mm, but blows your budget. A 70-300 lets you start in wildlife and maybe birds. I would suggest the Sigma 17-50 f2.8 over the Tamron for the OS (stabilization).
New lens come with a Warranty and that can be nice. Maybe you could figure out one lens to start with and grow from there.
A Sigma 18-70 f2.8-4, $500, would be a decent compromise lens, down to 18mm for landscapes and up to 70mm would allow for most people/portrait work. Most writers on the web prefer the Sigma 18-50 f2.8, $519, for its constant aperature and you could supplement it with a Rokinon 85 1.4 (manual focus) $280 with focus chip, as a medium telephoto / great bokeh portrait lens, or an 85 f1.8 G Nikon lens, $500, (auto-focus) decent bokeh.
Check out Filckr for example pics taken with the different lens, flip a coin, buy a lens, get off the internet and go. Con dios!