Vegas is a video and audio edition tools pack, specially focused on those users who own a SD, DVD and HDV digital video camera.
Sony Vegas combines an excellent video edition quality with a notorious sound quality, what makes it to be one of the references to this area. You'll have to take it on account if you like video/audio edition.
In addition, if you have a Sony video camera, you will be very happy because it supports all Sony digital video cameras as it can be seen in the supported devices list in the Official Site.
Without any doubt Soy Vegas is a very good choice that becomes even better if your digital camera is Sony.