Recieved the OpenSolaris Starter Kit today by mail, which we requested a while ago from Sun.
Contains two DVDs.
DVD-1
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Learning Materials
Belenix LiveCD
Schillix LiveCD
Nexenta LiveCD
Nexenta Install
OpenSolaris Source
DVD-2
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Solaris Express Community Edition b57
You can get it for free from here.
And here is the project page.