s3tools/s3cmd — pull request #42 by brendano (2012-04-01 23:18:31+00:00)
Title: Bugfix: use extra headers -- allows Requester Pays

for buckets you don't own.

I just used the patch on: http://arxiv.org/help/bulk_data_s3

Here is some discussion about it: http://permalink.gmane.org/gmane.comp.file-systems.s3.s3tools/405