OT: PPC Mac

[sdesros]

Is there a model number on the front?
This place would be your first place to go to get a rough idea on what you've got:
http://www.info.apple.com/support/applespec.legacy/powermacintosh.html

I'm no expert, but I'm guessing that your system most likely uses the ADB mouse and keyboard and probably the older mac monitor connections (AFAIK it looks a bit like the AmigaRGB ports.)

In most cases you can possibly find old Mac mice and keyboards at used shops, as well as converters to use regular SVGA monitors.  (But first we'll need the model number. )

I picked up an older PowerMac 8500 from http://www.themacgroup.on.ca/ a couple of years ago.  They had plenty of ADB mice/keyboards and had an adapter so I can plug it into a normal SVGA monitor.

[sdesros]

Ah... That changes things.

Okay, checking out www.lowendmac.com and I came up with this page: http://www.lowendmac.com/power/wave.html .

Some highlights:
-RAM: 16 MB, expandable to 512 MB using 168-pin 70ns or faster Fast Page Mode DIMMs (interleaved) in 8 DIMM slots
- ADB port for keyboard and mouse
- DB-25 SCSI-1 connector on back of computer
- internal Fast SCSI bus
- AAUI and 10Base-T ethernet connectors on back of computer
- PCI slots: 3, one occupied by ATI Xclaim GA video card

So it seems like you'll need to find yourself an ADB Mouse and Keyboard.  

I've looked into the ATI Xclaim GA video card on ATI's site:
http://www.ati.com/support/products/mac/mach64/xclaimgaspecs.html

Under connectors it states an Apple DB15 and a IBM VGA connector.  I'm not sure if it has both, or there are two versions of the card.  You'll have to inspect your graphics card and see if it's a 15 pin connector or a VGA connector.  Now that is if the computer didn't get a different card.