How easy would it be to....
 

... put in a 80GB hard drive from my old PC into my new one and have both of them run as one? Is it even possible? Im considering this due to timewasters who now no longer want my old pc.

Re: How easy would it be to....
 

it wouldn't appear as one, you would have a C drive and a D drive(assuming only one partition on both). You could create a shortcut in a folder on teh C drive that points at a folder on the old drive to do a psuedo mount but windows doesn't handle drives very well.

Needless to say, Linux lets you mount the new drive anywhere you choose :D