ok so ive searched all over the place but cant find anything on this. i have an ibook G4 running 10.5 Leopard. it only has a 40gb HD so i bought a larger one. but its a blank one. what i want to do is use that larger hardrive IN the ibook. but i need to install leopard on it abviously. but i dont have the disks (DVDs CDs whatever) for leopard. so is there anyway i can install leopard on an external HD to use as the internal HD in the ibook?