Just wondering if anyone could recommend a boom microphone I could use with my Canon VIXIA HF R200 camera. I'm using this to record a movie with my 4th grade class. Do they make kits that are a decent quality? Picking up the dialogue on the video has always been my biggest challenge. I very much appreciate any help provided. I'm going to purchase something I can use with my class each year...can something be purchased for around $300? Thanks.