No idea if this is a good deal, they say you save $147.50 (RRP $604.00).. the next best deal I've seen was at Harris Technology - $487 excluding shipping.. http://www.ht.com.au/part/Z3905-Adobe-Creative-Suite-5.5-Mas…
So this is a $30.50 saving over HT. (+$8-16 shipping)
Apparently only 59 copies in stock, ships the next day..
If you are a TEACHER in a NSW public school, you can purchase the full Adobe Master Collection CS5.5 for $85 through SI Group (https://www.sigroup.com.au/teachers).
They also have most Microsoft products for approximately $40. Hope that helps! :)