Did 3 weeks end of May - mid June a few years back. Landed in SYD drove up to the Goldy, missed an "all time" swell by a day, still some fun waves around for a few days. Cruised back down the coast checking out Byron, Newy, Sydney, Wollongong etc. Headed towards Vic to surf Bells and Winki, some very nice days over there, a bit crowded but manageable. Spent a bunch of time in Melbourne as well. Drove back to Syndey and flew to ZA for a few weeks. Overall a decent trip, was pissing rain along much of the EC and the surf wasn't pumping non stop either. Rented a large SUV and slept in the back for most of the trip, threw a few mattress pads in the back, nice and comfy, a bit cold but it hardens you up. Not too bad price wise, renting a small vehicle and budget accommodation should be doable for a cheapskate.Would be 3 weeks in likely the NSW/Victoria area in June or July...renting a car and budget accommodation.