i have rooted all my android phones...
got my S3 and had it rooted within 3 days.. had to test make sure it was 100% working before I go and mess with it. :P
my S3 is running "the people's ROM" .. very nice! and the Dev is soo active in this support.. helps each person's posted issues fast.
DropBox: register for free space (we both get 500MB extra space): http://db.tt/sWYVl3j6