Dinner in/near Grand Central Station

Not exorbitant.

Ok, the Oyster Bar.

What else?

Use Chowhound or OpenTable to give you all sorts of options given a location.

We recently had a fun time in a new pub called The Shakespeare at 39th between Park and Madison, but that is just one of a million places near Grand Central.  

BTW: Have you been to the (secret) Campbell Apartment? It is only a bar but it is a beautiful space. 

Docks on 40 and 3rd.  ( mostly seafood). 

Capital Grille on 42nd between 3rd and Lexington

Downstairs in GCS there is a food court with a couple of nice places to eat plus there is a Juniors.  

Sams (italian) on 38th just off Lexington - (need a reservation and is small).  

Cafe Centro - on 45th street entrance to the Met Life Tower (ok, Pan Am building for old-timers), large place and they don't rush you at all.  medium price range for the area.  you can get there without walking outside.

Sakagura, for sushi and soba. 

db Bistro Moderne.