Okay, your actual ATAR won't receive any bonus points, but when applying for a university it will have a couple of points added depending on their rulings.
For UNSW, there is EAS, though it differs based on the popularity of the course and what type of EAS you are under in. The S01E (school disability), one person on bos received 3 points for a high 90s degree. So it may vary from there.
For USYD, on their website it doesn't seem to say anything about bonus points, but there is something called the 'Broadway' scheme where EAS applicants are eligible for.
http://sydney.edu.au/future-students/domestic/undergraduate/access-sydney/broadway-scheme.shtml
If their atar falls under less than 5 points off the cutoff, there are 600 places each year. However, similar to UNSW it differs based on the popularity of the degree (the higher the lower).
"For example, in January 2013, while the Combined Law ATAR cut-off for the University was 99.70, the Broadway Scheme cut-off was 97.40, meaning that Broadway Scheme places were exhausted prior to those applicants 2.5-5 ATAR points off the regular cut off being considered. In other Broadway-approved courses though, the full 5 ATAR point differential did apply."
Goodluck!