You can stream top of the hour products with many radio automation software such as SAM Broadcaster. Here are some feeds that you can re-stream over your station.

BBC World Service:
http://www.bbc.co.uk/worldservice/meta/tx/nb/summary5min_au_nb.asx

ABC Australia News:
http://www.abc.net.au/streaming/ra.asx

Unknown News Source:
ftp://8475.ftp.storage.akadns.net/mp3/voa/english/spec/special_english.mp3

Workers Independent News:
http://www.laborradio.org/files/lo/winsheadlines.ram

(These are feeds of news, we do not take responsibility over any postings or usage of these streams)