Hi,
Thanks for the responses, Sounds like the best bet will in fact be to leave the thing running. It seems like a good idea to buy a UPS as well, although the machine does reboot itself after a power outage as Neil suggests.
Now, if I could only get the thing to email its IP address, I could leave a roll of paper in it and just send it a file to print every so often. I could come back from Paris to an exhibition printed and waiting for me in the basket!
cheers,
paul