You will also need a boom pole, shock mount and wind protection (blimp & dead cat). Most of the mics below can be purchased as a kit with the mentioned accessories.
Audio-Technica AT897 - $240
Rode NTG-2 - $270
Sennheiser ME66/K6P - $500
Audio-Technica AT4073A - $600
Rode NTG-3 - $700
Sennheiser MKH-416 - $1200
Neumann KMR82I - $1700
Schoeps CMIT5U - $2000
Also consider that you should have a non-shotgun condenser mic for indoor usage. If using the camera to record sound it is recommended that you also get a mixer so you can bypass the camera audio path.