KVM between A4000T and PowerMac

[Everblue]

I would like to connect an A4000T and PowerMac G4 (morphos baby!) to the same monitor, keyboard and mouse. These are the keyboard connections I use:

A4000T:

Mouse: PS2 via Micromys
Keyboard: PS2 via Lyra 2
Monitor: VGA via Picasso IV

PowerMac:

Mouse: USB Mouse (connected directly to keyboard or to USB)
Keyboard: USB Keyboard
Monitor: VGA via DVI convertor

Assuming that a KVM setup between the above units is even possible, what kind of adapters and KVM do I have to get?

Cheers!

[Everblue]

I wonder if a PS2 to USB keyboard adapter will work with the Mac?

[Everblue]

Ah thats great - last question, it says auto switching - if I have both machine switched on, how would I switch between?

[Everblue]

Ah great. /me places order.