Mail app and templates for emails? I used Mail as my main mail client on Snow Leopard. It would be really useful to manage mail templates with it. I used to send similar emails every day and I need to create 20 or 30 email templates to used whenever I need.

How can I accomplish with this?
By templates I think you mean canned messages. Here's a workaround (source):


Create a "Templates" folder.
Create and save a new draft message (including title).
Move the draft to "Templates" folder.
Whenever you need to use that template select a message and then choose Send Again from the Messages menu.
Make necessary modification and send.