I can't say for sure because I'm configured for the controller, but on the PC when I went to configure my controller I could choose between the L2/R2 hotbar and the 1-9 hotbar. I'll have to check when I get home or if anyone else is on with a PS3 they cna check, but I believe I saw that same option in the System Settings on the PS3.
Current: FFXIV | EVE Online (again)
Former: FFXI | The Matrix Online (FOREVER!!!) | STO | SW:TOR | EQ2 | WoW | Florensia | RF Online
FFXI :: Valefor :: Dareknight, Darexius
FFXIV :: Valefor :: Dare Knight
EVE Online :: Dare Knight, Hazel Knight, Rex Knight