I don't understand all of you that like to use Photoshop. I think it's a very cheap program and you make shades that look bad on graal. Basically your not doing a lot with graphics with Photoshop. Anyways, for the most part I like how Goboom shades with MS Paint.
I myself use MSPaint or PSP7 to shade. Anyways, I just wanted to prove my point, I hate photoshop.