reading what you have just written will be a real
moment for most people on this forum.
I'll break it down:
> there is no 3.5os for MPC60
> if they are advertising it working for the 60, it should WORK! with no need for funky upgrades
> a 4.5 GB external fixed drive is massively wasted on the 60, as the max space your 60 is going to see of that 4.5 GB drive is 400-600 meg (forget the exact amount, the info is on these forums some where) - and that will be in partitions of XX meg in size.
> a floopy emulator is MUCH MUCH cheaper and will replace the floppy drive too for £45ish - or a compact flash drive in a external enclosure, would mean you can have loads of different cards rather than one massive external drive.
hope some of that helps.