Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Sound › USB mic? › I think you should try out
I think you should try out an inexpensive stereo microphone that mounts to your camcorder.
The least expensive stereo mic I have tried that actually worked is the Audio Technica ATR-6250 http://www.audio-technica.com/cms/wired_mics/28664cc1715de436/index.html it uses a AA battery and comes with a shoe mount and mini-jack for your camcorder.
B&H Photo has them for $33.00 http://www.bhphotovideo.com/c/product/664439-REG/Audio_Technica_ATR6250_ATR6250_Stereo_Condenser_Video_Recording.html
Even better is the Audio TechnicaPro 24-CM which sounds great. Also connects easily to your camcorder, but uses an LR44 button style battery.
B&H Photo has these mics for $58.50