`M-x magit-find-file' is awesome.
(global-set-key [?\C-c ?m ?m] 'magit-status)
(global-set-key [?\C-c ?m ?b] 'magit-blame)
(global-set-key [?\C-c ?m ?d] 'magit-dispatch-popup)
+ (global-set-key [?\C-c ?m ?f] 'magit-find-file)
+ (global-set-key [?\C-c ?m ?4 ?f] 'magit-find-file-other-window)
(global-set-key [?\C-c ?m ?r] 'magit-list-repositories)
(global-set-key [?\C-c ?m ?w] 'magit-wip-log)
(global-set-key [?\C-c ?p ?p] 'mdw-mpc-play-or-pause)