paul1999

This plugin allows you to specify a default text for the “quick reply” feature in WordPress 2.8+.
The template can contain the comment author’s fullname, first name, link to the original comment and any other characters, spaces, symbols etc.
<h3>Credits</h3>
Matt Wiebe for javascript code.
Kaspars for adding the comment ID tag.

Quick Reply Template Plugin

Allows you to specify a reply template for the quick reply feature in Wordpress 2.9+.

bingu

[ATTENTION] WordPress version MUST up to 2.7
Enhance the threaded comments system of WordPress 2.7. 
When someone reply to your comment, send a email to you.

replyMail

Enhance the threaded comments system of WordPress 2.7. When someone reply to your comment, send a email to you.

Quick Reply Template Plugin vs replyMail