Hi Shepster,
welcome from fellow newbies.
I've found the following spots by trial and error, they usually produce something. I guess it depends how serious a fisherman you are and what you'll be happy with.
Depending what you are after, I've caught good fish (decent sized roach) in the cut up to Oulton Broad, good nets of silver fish and up to fair sized perch in and around Rockland Broad. On the northern side, skimmers, silver fish and perch at Potter Heigham, Barton Turf and various spots along the Ant.
I have a special place for bream, shared to me by my dad, who fished the Broads regularly in the 60s and 70s, that remains with me, but I have heard that there is good bream fishing on the Bure near St Benets Abbey.
Wherever you go, tight lines!