The new certification test from Oracle, Oracle Certified Associate, Oracle Solaris 11 System Administrator, is currently in beta and is priced much lower than the standard tests (US$50 compared to US$300). This test will help you get the certification of the same name. However, the beta period is ending soon: April 28, 2012.
Note that this is different from the Oracle Certified Professional, Oracle Solaris 11 System Administrator certification.
It is also still possible to get certified for Solaris 10.