What I would like to do is:
upload / install / setup s3sync.rb to the server at hand
important setup info is here
http://s3.amazonaws.com/ServEdge_pub/s3sync/README.txt
test its use on a test directory
setup a cron on the test
all the while, coming up with a script / instructions on how to repeat the successful setup
follow script / instructions on real data, once all testing is positive