OK
lets see if i got it right?
You have a WD 320 gb and you want to do what?
I guess what you want, its to make an image of your 80gb and put it on your WD320?
IF you use a image program you can.
But let me ask you this.Are you concern about your fs or your OS?
If i is your fs, save your fs.cfg , but you need to know what is inside of it.Then when you instal all you just paste you fs.cfg and all will be the same.Or you want to save your OS settings, so you can have what you have now?
Pls tell me what is you idea.

Cheers

When cloning I get everything, as is, from the original but you'll have a bunch of 'unallocated' space if your new drive's a lot bigger.  You can move unallocated space or simply make it another partition.  Watch my question in this thread.  If I get any answers they may also help you.