Top picture you can see the blowhole at the top of the case. The 120mm fan is slightly off centre because of the door locking mechanism (seen to the top left of the picture here). This means it isn't fully squared with the hole in the case - not sure how much of a detrimental effect this has on airflow. Another symptom of making things up as I go!
The optical drive has the 'official' Apple firmware on it - bought from Hong Kong via ebay. a £2 adapter converts the connector to standard IDE plus floppy disk power connectors. I used the original Sawtooth Powermac ATA/IDE cable as it was nice and long and I could route it in a reasonably neat manner around the fan in the base. Just a shame that the PSU connector on the micro ATX board is positioned next to the ATA connector.
Bottom picture shows the power switch. This is the last thing I need to sort out as it is rather a bind to have to open the Mac case each time I want to switch the machine on!
