I was having some issues with disk utility disk repairs and did not have my SL install disks with me. I went to the Genius Bar and they booted my MacBook from a LaCie external hard drive that had disk utility on it. They repaired my disk errors without having SL install CD's. I want to create a boot disk with disk utilities so I can take it with me (on the same Iomega hard drive I have backup files on) when I travel. I don't want to carry my original SL install CD's with me. How do I create a boot disc on my external hard drive that has existing files on it? It would be nice to have one external hard drive that I could use as a bootable disk (with disk repair utilities) and also use it to back-up and store files. Thanks and Happy Holidays.