Adorama is currently offering savings for both the RODE NTG-2 Dual Powered Shotgun Microphone and the RODE VideoMic Pro Compact Shotgun mic. I checked a few other sites, and indeed there is additional savings to be had up to $60 OFF.
The RODE NTG-2 is a handy shotgun microphone as it is a 'Dual Powered' microphone. This means if you have an audio recorder that does not offer Phantom Power, you can simply throw a single AA battery into the mic.
The RODE VideoMic Pro Compact Shotgun mic is just one of those microphones that offers great sound for the price, and currently it's even cheaper. It's been around for a few years and practically a main piece of gear in any video shooter's kit.