Are you looking for a cheap camera that works really well? Check out the jelly cameras. I love mine and personally it was quick and easy to use. There is a touch button on top that allows you to dim your light when you hold it down and then change them when you touch it which is a nice feature.
The only thing I must say is that if you have a curved monitor be kind of cautious because it can become a little top heavy if it is not sitting properly.
There are stickies on the camera that will allow it to stick on the monitor but if you do not like it that way, you can use a mini tripod. There is also a mic on this one which is a nice touch just incase you need one.
This camera is a USB one so you do not have to worry about a mic jack. It also comes with a cover that sticks to it when you are not using it and if you are not in a recording software or a software where you are needing a camera it cuts off which is nice. If you put the cover on it, the light will not light up also.