Here is a set of free BlackBerry Themes for the Storm named Titanium Storm that come in 6 different colors. I’ve got to admit, they are not to bad for free.
These Titanium Storm themes were originally posted in the CrackBerry Forums where there is a donation link for the developer which I strongly encourage that you use if you decide to download and install any of these themes which quite a bit of work and detail went into.
Download Titanium-Red OTA
Download Titanium-Red Desktop