What to purchase with 17" Macbook Pro

i buying 2012 version of macbook pro when , if apple device refresh it. have 17" laptop bag , in signature (minus thunderbolt display , macbook pro obviously). else shall buy when purchase macbook pro?

thanks.

 

a sleeve.
, need.

have 2009 17" mbp , use wired apple keyboard , mouse, , have 2.5" usb hdd backup to.

, other schnickschnack.

 

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