For $150 go with the Rode VideoMic. It's a professional grade shotgun microphone that's been getting some rave reviews. For the price, it's a pretty good deal. Another option would be the ATR55 : Cardioid Condenser Shotgun Microphone from Audio-Technica. This one is smaller, lighter, and cheaper than the Rode.
Good swhotgun mic
For $150 go with the Rode
Where I come from the
Where I come from the Sennheiser MKH 416 seems to be the industry standard for film, but they a quite expensive.
So I recommend something like the Rode NTG-1 or NTG-2 shootgun. I think they float around about $200 US. Also I know Audio Technica makes shotguns arranging from $150 to $900 US.
Lately I've been getting into filming, and I would like to know what would be the best shotgun mike to get for $150 or under. I kind of prefer shotgun to boom, because I might also want to do sound recording for samples and such.
For great justice!