rsync & backups

I've been using this backup-method for a while now and it works well for me.
After upgrading OSX to Snow Leopard, though, rsync would start to do its thing and then it would get stuck at
/var/vm/sleepimage
for no apparent reason.
After looking around a bit, I read that the version of rsync that OSX brings with it is fairly old and a newer version might behave better. Using this tutorial, I installed/compiled rsync 3.0.7 and it solved the problem.

Some articles on the same topic that are interesting as well:
http://www.lartmaker.nl/rsync/
http://discussions.apple.com/thread.jspa?threadID=2143497&tstart=1
http://www.lbackup.org/developer/overview
http://help.bombich.com/faqs/troubleshooting/what-makes-a-volume-bootable