Well this is my problem. I successfully installed a bigger HD into my MBP, and then went ahead and installed leopard. After it finished installing, I chose to "Transer my data from a Time Machine back-up" (I had wisely backed up right before installing the HD)..and it went thru the transfer fine. When leopard started up, it had all the default icons on the dock, default system settings, and then another home folder with all my old stuff. What I wanted is to have the same exact set-up I had backed up (Apps, system settings, icons, 10.5.1, etc etc.) I then moved onto plan b. I took out my gf's HD (from her MacBook) removed the enclosure and stuck my old 80gb drive on there. I booted up her mac, and voila I had my "old mac" back. I then went onto my MBP and did a complete erase, and reinstalled leopard. This time instead of using the "Transer my data from a Time Machine back-up" method, I chose "Transfer my data from another mac" option. I have done this numerous times before when I've bought newer macs, and always the end result is "my newer mac" looking exactly like my "old mac" (settings, and apps wise). When this processed finished, (it took about 1 hour and 30 min) it gave me an error message at the end, and it had transferred NOTHING. My third plan was to use a super duper back-up, but to my luck it isn't compatible with leopard yet. So after doing some googling, I keep coming on this "clone hd" thing when people install new HD's. I kind of looked into Carbon Copy Cloner, but I've never used it before and I'm wondering if that can help me somehow. Can anyone suggest a possible solution for me? The end result I would want is my same old exact settings, apps, docs, all my songs in itunes, etc etc. on my new 250 gb HD. Thanks ya'll Edit: And btw, I have a 250gb external HD I can use to "clone" or whatever you call it my old 80gb onto.