So guys, I'm having some troubles cropping images correctly. Whenever I try, it crops it, but then there's always a small (Most of the time 1 pixel) white border around the image. So, I worked around it today, but only because I was using spherical objects, and I could just used the Elliptical (Circle selecting) tool.
I'm using Photoshop cs3 at the moment.
I also have Gimp and (Of couse) MS paint.