There is problem with buffs in raid frames:
-Castable buffs option doesn't work for raid frames - all buffs appear even if you choose to show only castable by self. It worked fine for me before 3.0.2 (shaman). I was able to see only totems and shields in raid frames as buffs so I could easily check if totems are in range.
-Buffs/Debuffs that appear in raid frames are visible through PvP window (arena teams).