Stormy Orb:
1. New document (500x500)
2. Filter > Render > Clouds
3. Filter > Render > Difference Clouds
4. Press "Ctrl+F" to repeat the Difference Clouds Effect. Press this about 20 times, until you get a rigid look similar to this.

5. Filter > Distort > Polar Coordinates (Rectangular to Polar)

6. Use The Eliptical Marquee to Make a selection around the "Sphere" part of the canvas.

7. Now Right-Click inside the selection and select "Layer Via Copy" (This will copy the sphere part to a new layer)

8. Now select the top layer (Your "Sphere only" layer) and go to the "layer styles" and use the following settings:
Outer Glow:

Inner Glow:

Gradient Overlay:

Pattern Overlay:

Stroke:

9. Now to add color to our Orb. Press "Ctrl+B" to bring up the Color Balance Options, and use the following Settings.
For Midtones:
Cyan: 100
Blue: 100
For Highlights:
Cyan: 75

10. Now Set the "Blending Mode" of the top layer to "Vivid Light"

11. Now Make a Shine on the orb. If you dont know how to do this, go back to the tutorials page, and read the "Adding Gloss to Buttons" Tutorial, that will show you how.

12. Now For this You need to download the Lightning Brushes, Heres the link:
http://www.deviantart.com/deviation/9849304/And using those brushes, add some lightning to the Orb, make sure that the lightning starts right at the center of the ORb, or it wont look very realistic. Here is my finished result.

-Scott