I've just discovered that you can use Google Apps to do the mail hosting for your domain for free, for up to 100 users. Others have already written about it - I've found an excellent guide for migrating to it from various email clients and accounts that appears to be very thorough in detail.
I'm currently paying for the hosting of email for my domain and I've got to say that this is very tempting.
After a bit of googling about the subject I found a blog post by Scott Hansleman about how he migrated a number of relatives from various email clients across to Google Apps, well worth the read: Migrating a Family to Google Apps from Gmail, Thunderbird, Outlook and others: The Definitive Guide
