I completed my HSC last year (2010) with an (ATAR of 98.5) . I tried a couple of coaching colleges but felt they werent meeting my needs. The class sizes were ridiculous, 30+ students.
I decided on trying home tuition and was truely satisfied with the calibre of teachers from band six coaching. They provide great support with notes/exam prep/assessments / homework. I receieved a band6 for maths, economics, business studies and physics.
Band Six coaching tutors come to you, which means your not wasting time travelling. They are pretty cheap $40/hr for HSC compared to some other companies charging between $68-$88.
The tutors are really flexible, approachable and patient. They have uni students and qualified teachers as tutors. Give them a try. Their number is 0415 777 372