I have gotten a few at themes4bb and i really like them. Then of course for a fresh take on the themes once they get old is to just replace the wall paper.
Here is the link to the free OTA pearl theme thread. You can also request themes in another thread and they will make em for you! 8100/Pearl OTA Themes - PinStack.com
Sigh...I'm too old for this stuff. Please just give me a list of everything that sucks--carriers, devices, software, sports teams, countries, religions, shoe brands, presidential candidates, cities, power tools, street gangs etc. so I can limit my options and be awesome again.
Try Gemblock. They have several VERY good themes. I like the Sticky Notes, Chalk, and Flamboyant themes myself
Also, if you are looking for iPhone based themes, take a look at the bPhone theme. It's BY FAR the best iPhone clone theme I've seen and it's free. He has it in the Icon, Zen, and Today formats.
Some of the best themes are the vendor themes. For my 8130, I like the Vodaphone and Verizon themes. Vodaphone's got a home screen that's really useful, sort of like a today screen and missed calls/messages. Verizon's by far is the cleanest looking. Both are very slick looking with great icons that are consistent and look very pro-like. Sorry no screenshots.
Also, if you are looking for iPhone based themes, take a look at the bPhone theme. It's BY FAR the best iPhone clone theme I've seen and it's free. He has it in the Icon, Zen, and Today formats.
I have bPhone and love it! Especially since it was free.