Please note that these cut-offs are usually not concrete, as law tends to be a good money-maker for the universities, since it is a cheap degree to administer relative to the fees paid for it (contrary to highly practical degrees with labs etc. which actually make a loss on CSP students).
Under the E12 scheme, USyd's cutoff is 95 (I don't think they go much lower than that), so apply if you're eligible (and make sure it is you first preference when required).
UNSW tends to be a bit sketchy with their law cutoffs (iirc pre-LAT, most of their admissions were way below the advertised 99.7 cut-off) but now with the LAT, a 90+ ATAR is sufficient provided you've done decent in the LAT.
UTS, Macquarie, WSU, and UoW are very generous with bonus points and even if you're 5-10 away from the cutoff, you're quite likely to get an offer. Note that MQ has an unconditional early offer scheme where you get an offer before the HSC, and only requires you to "complete your HSC exams" - they are quite liberal in handing out these offers too. UoW also has a similar scheme, and they have campuses in Sydney.
Just aim high and do the best you can, and don't be intimidated by the high cutoffs as there are always other ways in.