OK, so here's my question before I get deep into this later tonight. I have my old 120GB HD from my 17" PowerBook. It's formatted APM, PowerPC install of Leopard 10.5.8. I have a brand new 500GB HD formatted GUID for the new MBP. So, if I use Carbon Copy Cloner or SuperDuper to clone the 120GB HD (APM) to my 500GB HD (GUID) is the APM partition of the source going to overwrite the GUID partition of the target? In other words, will I have an APM formatted HD (because the clone app replaced the GUID partition with the APM one) when I am done with the clone? Does CCC or SuperDuper go down to the block level for that, or is it just a straight copy of files? My purpose in this is to essentially make the new MBP a duplicate of my old PowerBook. THEN, to update the OS to Snow Leopard. I know this will break quite a bit of my PowerPC only apps, but I have plans around that. Just need to know if this will work. I understand that it's possible to boot an Intel Mac on an APM formatted drive but you can't update and you can't use boot camp. So, naturally, I'd like to avoid going through all this trouble only to find out I'm stuck on Leopard.