My employer has tasked me with taking most of our printed training documentation, and creating instructional "how-to" videos. They've bought a license for Camtasia, and installed it on my nearly brand new Dell E6440 (Core i5) laptop, running Win7 Pro. I'm also going to need some sort of a microphone. First question would be should I be using a microphone attached to a headset, or a desktop microphone. The sound quality won't need to be professional grade, as these videos will only be used "in-house", but we do want it to be good quality.