Have one of my tray-load iMacs going now and have put a 40GB drive in to replace its' old 4GB. Drive has not been partitioned.

Can't exactly boot into Mac OS :-/ - just hangs at Open Firmware.

Was reading up on Lowendmac that the main drive partition has to have a under 8GB partition - is this the case? (if it's so - ill have to set up under the Mini)