Lens question for Nikon DSLR owners

[poker]

Just picked up a Nikon D7000 and looking for opinions on some nice glass. I was interested in the Nikkor 85mm f/1.4 AF-S, and a Nikkor 50mm f/1.4 SIC SW Prime.
The camera came with a 18-105mm f/3.5-5.6G AF-S VR lens but Im interested in your opinions on some nice lenses and where I might start looking for a good price. What about used or refurbed lenses? Pros/cons/forget it?

Thanks for any and all help.