I just wanted to start a thread here on the topic of S3 rooting. I have found instructions on other sites but this has always been my home site for PPC guidance. So let's get some chatter here.
Here are some links to tutorials:
How to root your Samsung Galaxy S3 | Reviews | CNET UK
How to root the Samsung Galaxy S3 SPH-L710
It is still a little sticky with the locked bootloader but you can bet the XDA boys are hot on it.