Yoo so I've got this question over on macrumours but they're mad slow so thought I'd chuck it up here..

I'm replacing my HD in my macbook. Got a disk image saved on an external hd and ready to roll.. Only thing is I've left all of my original startup discs in a different state.. Wondering if anyone knows a way around restoring my disk image to the new HD without having to put in the os disc on startup to access disk utility?