Yes, Port River is still good, Snowdens Beach near the new Port Adelaide Sailing Club is ok for a beach launch. My favourite is Garden Island. Floating ramp, near Barker inlet, ship wrecks etc so ideal for my TI. It depends on how far you want to travel as places like lower Murray Lakes are still popular. I would however be the worlds worst fisherman so don't take too much notice.
I tried to organize a Hobie get together but after going out for dinner, it fizzled. The Hobie Big Day out saw over 30 islands at Seacliff so Shane from the Binks Dealership must be doing something right.