Are there any decent shotgun mics for the Nikon D3300?

Are there any decent shotgun mics for the Nikon D3300?

I have seen the Rode recommended.
http://www.amazon.com/...00CAE8PM4/

Lots.

Depends how you plan to use the shotgun mic and your budget. If you prefer to mount the mic to the camera and plug in directly to the dSLR's stereo 1/8" audio input, both RODE and Audio Technica make good ones.

If you want the shotgun mic to be mounted to a boom pole, it is preferable to use a mic that has an XLR connector for the shielded, balanced cables needed for the longer cable run. In this case, Audio Technica and Sennheiser make good ones - and you will need a XLR adapter (see BeachTek and juicedLink).

I like using a XLR shotgun mic as a wireless mic and use the wireless add-on module with mated portable base station (Sennheiser G3 series).

The additional advantage to using a XLR adapter is that most shotgun mics are mono audio and record to only one audio channel in the camera. Assuming you are using the camera captured audio rather than externally captured audio and synch'ing in post, be sure the XLR adapter you select has a "M"ono/"S"tereo so you can control whether the audio is recorded to both channels in the camera if needed.

If by "decent" you mean "less than $50", please reconsider your budget. It would be a shame to have the great convenience feature video your dSLR can capture ruined by poor audio from an inexpensive mic.