I dont usually ask but we could do with a newsletter plugin or integrate with phplist

We really could do with a newsletter system, my site in particular has 300 members that aren't doing anything! so to try and motivate them I would like to keep them updated with a newsletter, but how easy would it be to code a html newsletter sender..? I wish I had enough php knowledge to do it myself :( or even an integration with elggs member database (email addresses) and phplist (http://www.phplist.com/) so phplist is where we create the emails and it handles the processing but the email database comes from the elgg users database! PHPList is OS Software...