Need an Envorinment

Ok...I need someone to create a skybox for an envoronment. I can handle the stuff on the ground, but I need someone to create a skybox that looks like a giant storm. So...if you can do this, post to this topic or e-mail me @ checkmate123@milmac.com. Thanks to anyone who can do this, and I'll trade something in return for it.
Thanks,
Tarzanman