Cool Qn there!
This is my 1st job as a Solaris Admin after graduation and it has been more than 2 years.
Like what zazzyboy said "the world's your oyster." in the UNIX world. Tks God, I didn't ended up as a developer like what I desired during school. (Now I write scripts to satisfy my own needs unlike app developer codes to satisfy others' needs.)
In 2 years I finished SCSA, SCNA, OCP and J2EE WCD. As a DBA/SA, really have to read a lot to get job done in the most efficient manner, else will find yourself re-inventing the wheel many times.
The books I have cleared and recommended are:
Brian Wong - Configuration & Capacity Planning
Adrian Cockroft - Sun Perf and Tuning
Tanenbaum - Modern OS
Terry Quatrani - Visual Modelling with Rational Rose & UML
David B. Little and David A. Chapa - Implementing Backup and Recovery
Richard J. Niemiec - Oracle9i Perf Tuning
Tons of SUN Blueprints -
http://www.sun.com/blueprints/online.html
"Stevens book, UNIX Network Programming" is my next item. (Not very good with socket programming.)
Other than have to spend a lot of time reading, I dun have much complaints about being a SA/DBA. And it gets more fun when you have to spend budgets on improving the existing data center infrastructure.
Have not look back since then.