WP Plugins Needed x2 to start

Currently my website uses wordpress 3.0.5 w/ a few main plugins. One being User access manager and the other post notification. I need to be able to send post notifications only to certain a group(s) defined by the user access manager. I would like to combine this into one plugin if possible So I can have full control on access groups and define who gets which particular posts. I need functionality to be precise. Please post if you have experience in wordpress plugins/PHP Thank you!