Inseting info into MySQL and retrieving all in one SQL command

Hi guys, I am adding some information to my MySQL database. It is user's information. So it has things like email address, password, username, all that sort of stuff. What I need to do is once I have added it found out the id - a primary key which auto increments itself. At the moment I am doing two different MySQL queries an INSERT and a SELECT to first of all add the information and then find out the primary key. Is there anyway I can do this in one step? Thanks in advance Scott Mebberson scott@redbluedesign.com