So I'm wanting to get Windows 8 on my Macbook with bootcamp. I've read here that the Windows 8 Pro Upgrade will still install as a full system install and I will be able to have Windows 8 without the need of a previous version of windows. Is this true? I do not want to go and buy the retail version of the upgrade for $80 and find out that it doesn't work. Can someone please confirm if this will work and explain to me what I should do? Thankyou!