Thanks again everybody for all the great feedback!
How fast is the PPC? I don't see it in the description or the whichamiga screenshot. Of course I could be blind and missed it 
I'm afraid I'm not exactly sure. I bought the beast in around '97 from a UK company (White Knight Technology I think they were called) and they handled the build for me. I just asked them for a super setup.
I've never done any overclocking so I'd imagine it runs at either 180 or 200 MHz. Would anyone know the best way for me to find this out using software?