Here’s what I want to do:

I have a [tag]Mac[/tag] tower from 2004. (Yup, it’s not even Intel chipped.) It has two hard drive bays.  The first has the 80GB hard drive the machine came with.  The second has a 250GB model I added in later.

The machine boots off that 80GB drive and has all the OS stuff on it.

I want to replace that 80GB drive with a 1 Terabyte drive.  It would be easier replacing the 250GB drive — just slide it out, put the new one in, hook up the old one externally and copy all the files.

It’s a little more difficult doing this to your boot drive.  Has anyone done this before?  Do you have any recommendations for sites that explain this process?  How easy is it?

Thanks in advance for the advice.