Wirelessly posted (Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0) BlackBerry8703e/4.1.0 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/105)
Thanks. If you haven't tried it, you probably should at least look at Message Alerts - it can be customized to do this sort of repeating notices, but with optional logic to pick and choose a subset of the messages, etc., it fires off on.
(Disclaimer: I'm not with them, but have been using their software for some time. Always on the lookout for new stuff, though.)