After several tries over some time Col (colinbm) managed to send me the large file referred to late in this thread.
He used a service found here... http://www.wetransfer.com/
which allows files of up to 2GB to be sent.
But there is still a catch, it seems. Your mail provider might have email size receiving restrictions. BigPond has about 15 MB max size.
With Yahoo mail I received a 14MB attachment, and the new version of Yahoo mail uses YouSendIt to send large attachments (<=2GB).
So, there are two possible restrictions involved, but at least they can be sent.