Have you heard of Incredimail?
It's free, has lots of cute smilies, but what I like best
about it is the mailbox. When you get e-mail, you only
get it from the people on your mailing list. When someone
else e-mails you, like scamers, you can bounce the mail back
to them and delete it at the same time. When you bounce
mail back, they don't let that person in again. Any mail you get
that's not in your address book goes to Junk & Unapproved.
You can see who it's from, and then delete or open it.
It even has different papers, and cards to use.
I like the Yorkie paper
Just in case you would like to see it, here's the link
http://www.incredimail.com/english/index.asp