[G4] Where to put a 3rd hard drive?

[Crandon David]

Hello All,

I have a DP500 Gigabit Ethernet G4.

I already have two hard drives attached to the same bus.

I'd like to add a 3rd, and from what I understand it would be connected 
to the same bus as the DVD-ROM drive. Is this correct?

Does the DVD-ROM drive already have a cable that will connect two 
drives (like the main hard drive cable) or do I have to get a new 
cable? And do I have to do the master-slave thing (this computer does 
not support cable select)?

Thanks.

David