Here is a list of publicly released, third-party templates. There are also many more that you can find available at EE Templates Library as well as EEDesign.
TealTemplate - (Demo)
Ocean Mist (Demo and Download) (updated to version 1.2.1 on April 3rd, 2008) - (Thread)
Hemingway (Demo and Download) (updated to version 1.0.1 on April 3rd, 2008)
Salmon (Demo and Download) (updated to version 1.0.1 on April 3rd, 2008)
DePo Skinny(Demo and Download)