Book recomendation wanted : oracle 10g for developers

Anyone recommend a goods book for Oracle 10g PL/SQL for developers with a SQL Server or Sybase background?

I think the following (or similar) books are "must have" for everyone who works with Oracle every day:

Oracle Database 10g: The Complete Reference
Oracle Database 10g PL/SQL Programming
Oracle Database 10g Performance Tuning Tips & Techniques

All three now gracing my desk - thanks for the recomendation...

Wow! Enjoy it. :afrog: