Steve just let me know about a slick new set of themes he has just released. It is a BlackBerry Bold knockoff theme but with a cool blue styling instead of the traditional red that we have been seeing. It comes in icon, L, Zen, & bottom dock style formats so there is something for everybody except for a today version.
Steve told me that he thinks that the 8300 version of the theme will work on an 8800 but he could not verify. There are OTA downloads only and make sure to download the correct version for your OS. (4.2, 4.3, or 4.5)
You can find the themes on the www.pimpmyberry.com forums.