Create a 3D round Button
Learn to make a great looking round 3D button in less than a minute!

Select the selection tool and then put the setting on "ellipse." Holding shift while making your selection (to keep the circle perfectly round), select an area the size of your desired button.
Choose a lighter shade of a color, and a darker shade of a color (here I used bright red, and dark red). Using the gradient tool, at a 45 degree angle from the upper left, to the lower right, fill the circle.
Now you must select a smaller circular area within the first circle that you just shaded. You can do this by holding down the shift button and simply creating a smaller circle, and then arrange it so that it is properly centered; or, you can go to select, modify, and contract, and then choose how many pixels you would like for the circle to be contracted.
Now using the gradient tool once again, with the same colors as before, fill the circle from lower right to upper left. Then select none and you have a great looking 3D button. You can also add text over your button, but make sure to keep it with in the smaller circle or it won't look good.

Check out these free samples of interesting buttons!