thanks
yup. saw ur thread searching for Preatorian also. psu on top. if bottom, the full atx motherboard are not able to be fitted. matx board will be much easier.
if u plan to convert ur powermac using the easier way, the are much better ways to do it without cutting the case.
matx board is the only requirement. a single day work will do the job with not much task needed. google internet for powermac g5 or ask me for more information.