Here's what I know...
Bears Bantam AA - lost one of their 04 player to Wada's Bantam AA 04.
Wave Bantam AA - Core from last yr's championship run mainly intact. Picked up one 04 player from last yr's OCHC PWAA, one good 04 player from Bears, another 04 from JrDucks2, lost one player to Kings and lost a good one to Flyers. Picked up a few other players from elsewhere as well (1 PWAAA IIRC). This is a mostly 04 group and roster may not be completely set yet.
Empire Bantam AA Hamacher - Mainly 03 group. Lost 2 good 03 players but added 2 strong 04's from last yr's OC Peewee AA team and added another from Bears. Hamacher's team brings it every year and this year will be no different.
OCHC Bantam AA Bickley - Lost 3 04 players from last yr's PWAA team to Empire and Wave, lost two 05's from last yr due to age. Picked up 5-6 03's and a 04 goalie from last yr's Calder Wave team.