hey james,
not sure about the SX camera, something to consider is perhaps the CDS-600d
http://www.centralds.net/cam/?p=1687 , you can pick up a 600d body pretty cheap on Kogan $469
http://www.kogan.com/au/buy/canon-eos-600d-body/, and get it modified at CDS for about $1100 i think
http://www.centralds.net/cam/?page_id=5308 which would equal near abouts the price of a 60da.
cheers
rusty