Anytotal Mac Webcam Recorder Pro is a good video capture software for Mac users, it work well with the Mac iSight also.
It can colloct your webcam stream into many format, like MP4, MOV, FLV, 3GP, etc.You can record your voice into mp3, aac, aiff, wav and so on.

You can take it like a sound recorder.
We have integrate with facebook uploader and YouTube uploader in the software.You can upload your video directly to YouTube with ease.
You can add a simple watermark if you want to let your viewers know where is the video from.Current it supports text and image watermark.
It will bring more interesting in your life, enjoy it.