Hello! As the title states, I plan on reformatting my mbp. I'm quite new to this so I really need your help. My mbp came with leopard but I later on upgraded to snow leopard. Knowing that I bought it as an upgrade, I should install the leopard cd that came with my mbp. This is where i'm getting confused, should i install all the updates before installing snow or can I immediately pop in snow and install it? And what else should I keep in mind when reformatting? Thanks in advance!