[MgA]

The new Solaris 10 operating system integrates so many innovative and valuable capabilities, it's in a class by itself - and it's free. You can download it to your x64/x86 or SPARC system right now for free under our simple Right to Use (RTU) license.
http://www.sun.com/software/solaris/get.jsp

They have some other freeware to download too...

Enjoy...If you have a sparc box