Some good advice here. I'll echo Jon E's point about whether clubs are friendly or not, and that it would be a good idea to spend a summer weekend day or two just driving around from club to club and chatting to people to see how well you'd fit into that club's culture. Some are great, some are sadly unfriendly or just neutral - and it can vary a lot from class to class within a club.
With respect to Ramona, I love the Laser despite having sailed a huge variety of other boats (ie my wife and I currently have a J/36, Formula 18 cat, Tasar, Lasers and about 20 windsurfers plus a half tonner and Int Canoe needing restoration). I think they're less of a quality minefield than most other boats, partly because there is so much info on the 'net about them*. I've sailed an Aero twice and found it rather underwhelming personally, but all that sort of stuff is very much down to personal taste and situation; ie if I was going to go away from the Laser and spend Aero $ I'd get a Waszp and get a REALLY light, modern, twitchy and fast OD.
However don't overlook the Sabre which was specially designed for Port Phillip Bay and is huge down there. It sort of fits into the same niche as the Solo (ie non SMOD, slower than a Laser but easier to sail, popular nationally but not internationally) in the UK although they are very different designs with the Sabre being little more than half of the Solo's hull weight. Then there's the Impulse, which is much quicker (despite the dodgy yardstick


) but less popular in Victoria and which suffers from a big difference between the old boats and the later ones.
Oh, and you probably know it already but in general the clubs to the south suffer less from the big chop that the sea breeze brings in.
PS - there's a lot of BS around, like the stuff about the Laser sails only lasting one or two regattas. Mark Bethwaite, Olympian and world champ in multiple classes, is a very wealthy guy and he used exactly the same sail to win three Masters Worlds. Kankama here used one (very) used sail, one new sail and one charter sail throughout his entire Laser career, including winning the Youth nationals, NSW overall titles and getting 22nd or 25th in the Open Worlds. Laser sailors have a strange culture of flogging their sails and then complaining about it.