RE: Shotgun Mic suggestions
If you are looking for a good mic in that price range you will be limited to Azden or Rode (unless you buy used), the new sennheiser's start at $366 for the ME66s and go up from there. Unless of course ifyou are looking for a mini jack mic. then the Mke400 is in your price range.
Nothing wrong with the Azden's, I would however stay away from phantom powered only mics. as they will drain your camera battery fairly quickly.