well that your only option because it would take just as long or longer to upload the file from his pc to hotmail. jsut tell him to do unlimited upload speed, unless hes on 56k or something.
he could burn the thing onto a disk and mail it to you.
Sending a 1Gig file is going to be messy however you do it Especially straight from your computer, which is going to have a limited amount of bandwidth. Send it on a DVD I would say, or put up with the huge amount of time it will take you to send it.
Ask him to compress it ... and then ask him to upload it onto the internet using YouSendIt or Dropload ... very good It may take a while to upload depending on how fast his bandwidth speed is ...