Yeah thanks, I do know about Google and have been wading through a tonne of results to find something either useful or free but they're few and far in between. Ended up finding some useful links in HC
For anyone else out there interested here's what I've got so far: www.egoli.com.au/epiServer/Documents/Market%20Diary%20Documents/DividendSchedulebyDate.pdf - this pick so far
www.incomeinvestor.com.au/Dividends/ - you need to register for free to view the calendar. It's not bad
www.tradersnetwork.org/research_channel/calendar_book/ex_dividend.php - not a bad list. Not sure if it lists all companies going ex though?
www.dividendtrader.com.au - looks like it could be promising but the subscription to their weekly newsletter is broken which I've mailed them about