If so, why not get your very own avatar? It’s a good way to put a face with a name…er…comment.
Register at Gravatar.com with the same email that you use when you leave a comment here. It’s a free service and is used on just about every blog and site that you’ll visit that allows avatars.
Also, if you use MyBlogLog and you use the email address that is associated with that account then that picture should show up as your avatar here.
If you have a WordPress account, that might work too.