How to make buttons

I’m trying to make my dad’s palm pilot but I can’t make the buttons. Coudl somone please tell me how to make the buttons. Here is pic. It’s kinda like the one I"m making. all I want to know how to do is the buttons.

http://img.photobucket.com/albums/v260/Ic3CoLd/clie.jpg

One way that I found that worked for me is actually cutting out a quad, and using that as a button. Basically cutting it out, and then using it to make a round or oval button. In order to pull that off though you have to be using subdivision surfaces, otherwise it won’t work. Here’s the result of doing that.

http://www.zerohaven.com/gmoyes/mouse-bluemarble3.png

You can see in this image that the area where the button would be is three quads wide. I just duplicated a selected quad (after I enlarged it to make it the right size) made a hole there, and then used my duplicated quad as a button. So, if you looked at that image without subdivision, the buttons would just look like a rectangle.