New To Oracle

Hello Forum,
I am a sql server guy and have to make the change to oracle for work reasons
I am a software engineer not a dba, but I still need to interact with oracle
I have access to toad, oracle 11g

What I need is a starting point for reference.
I am looking for a beginner to intermediate guide to oracle to include the syntax, and other complex operations
another guide for toad, pl/sql,
and if this exists a guide that is designed for the transition from sql server to oracle

So far after spending some time goggling I have found a lot of oracle admin books, but the tend to skip the basics including syntax which is important as there are big differences between the two languages
example> in sql server I can have an auto increment identity column in a table, but in oracle this does not exist but rather uses some kind of system sequence -- I have sort of figured this out but still would like a reference to it

can anyone recommend a book or a list of books that might get me started in the right direction

thanks to any who can help