I have done both, and I prefer to use a machine. That said, you can't beat hand work for portability.
If you should decide to buy a machine, do yourself a big favor and look for a used vintage machine; all metal parts, easy to get replacement parts, and easy to maintain by yourself. There are some Yahoo groups for vintage sewing machines, and you can get a wealth of information there. Old Singer and Kenmore machines that are in good running condition are a great investment.
Good luck to you on your first project!
Stephanie