Mountain Lion is upon us!

For the Mac users who have recently been introduced to the Mac OS (like me), what do we have to keep in mind before installing Mountain Lion in the coming days?

- Do we need to prepare our computer in any way?

- Does the update wipe apps, settings and preferences?

- Is your content secure?

- Will it break apps like Office? Will i have to reinstall?

- Should I stock up on canned foods, potable water and ammo?

etc etc

This is my first OS install on a Mac, and I want to be prepared. I have not messed with my drive at all, i have not made any partitions, or even run the disk utility yet, considering its only a few weeks old.

Thanks Guys!