Protection for MBP ? (backpack / keyboard covers)

[dmegatool]

Ok maybe I'll getting a 15" MBP so I'm looking at back pack. Does this one (http://www.radtech.us/Products/Backpacks.aspx#Eclipse) will perfectly fit the MBP ?

Do I need a keyboard cover ? I nerver owned a laptop but I see that some people use it to prevent little mark that keys could make on the screen. Should I get one of theses ?

What else should I get ?

[intlplby]

my keyboard cover caused marks on my MBP screen.....

the MBP has tighter tolerances than the Powerbook so the screen is closer too the keys, the iskin is too thick

[dmegatool]

So I should use something like this (http://www.radtech.us/Products/NotebookScreenSavrz.aspx) ?