Proper email styling
At the moment it is possible to style email at Setup -> General Settings -> Mail. However, this doesn't format the email properly and doesn't allow the use of base64 encoded attachments.
What I would like to see is the ability to edit a .tpl file to edit the header and footer of the emails.
At least provide us with the ability to add <html> and <body> tags and add stuff around it (for base64 encoded stuff).