1.SharePoint Alert Reminder Boost contains SharePoint Alert Boost workflow and SharePoint Reminder Boost workflow, a couple of SharePoint workflow templates designed for SharePoint2007. They run on SharePoint lists, extend default SharePoint Alert Me function and provide additional features beyond out-of-box SharePoint Alert Me. These features include:

Auto send SharePoint alert emails when list item created, modified, or deleted;
Auto send SharePoint Reminder emails for upcoming deadlines, overdue item, or change of item status.
Sending targets include appointed users/groups, user/group field columns, email addresses,email columns and AD users or groups who are not in SharePoint site.
Customize SharePoint email contents with item information or other formatted text/picture.
Customize sending conditions using expressions including list columns, operators and functions.