Chris
The clubs that come to mind are Albert SC & Albert Park YC on the lake (both these look like being seriously affected by shrinking water levels soon); Williamstown and Altona in the west; Elwood and Black Rock in the north(ish); Mordialloc a bit South. Other inland venues are Lake Sugarloaf S&BC in the north-east or Lysterfield SC in the east.
Black Rock will offer the strongest competition if that is your bent.
Storage is going to be your problem; some clubs have extensive capacity but it is usually at the end of a long, long waiting list.
I suggest you visit clubs that interest you, check out the storage possibilities, parking, fleet numbers and fee structure.