"I have Core1 downloaded and want to install it asap but I would like to know how easy it will be to upgrade to Core 2 ?"
I think that it is easier to install Core2 as a new install than to upgrade from Core 1 to Core 2. So I suggest that you set up enough partitions to install Core 1 and Core 2 as separate systems in additon to whatever you are running now. Install Core 1 now (asap). Then later install Core 2 and triple boot Core 1, Core 2, and your current OS until Core 2 is stable. Once Core 2 is stable you can move your data into the Core 2 system and start deleting the older operating systems.
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Be prepared. Create a LifeBoat CD.
http://users.rcn.com/srstites/LifeB....home.page.html
Steve Stites