??????????

Hello for everybody.
I have a huge problems in finding a sony UP-D70A
printer drivers for mac x 10.3.Now i' m using mac G4 with
OS 9.2 and i have 7 sony UP-D70A printers.
In mac there is scsi card and off course sony printer drivers.
So far everything has worked well, but now i have a new G5
with 10.3 and suprise ,there is no sony printer drivers for that.
What the hell can i do?
Are there some wild drivers in a market!!!!
or shall i use my G4 (9.2) as a server??
Any other ideas?would it be time to change over to pc-world!
PLEASE HELP ME!!!