FYI... just wanted to let everyone know that not all Toshiba 40GB drives will work for updating. I picked up a MK4018GAS and loaded it with the current files(Thanks Garrettoomy and all of the others that have contributed), but it reboots about every 5-10mins in my Z1. Drive appears to function normally in my laptop and doesn't have any bad sectors or errors. Seems to be worse when I've got a DVD going than any other source. Looks like I'll just be updating my factory drive since the Toshibas are so hard to get a hold of.
D