Lately my mac has been running sluggishly and i think its about time for a fresh format/reinstall. Before i go erasing things: Is it possible for me to make a disk image of my entire MacHD (once ive weeded out some unnecessary apps and stuff) and then, once i format and reinstall OS X 10.4, just restore it completely using that .dmg? I have never used the Restore utility before so i am not very savvy with it at all. On a similar note, is there a way to do a Mac version of Windows' "System Restore"? Please let me know because i think Restore is a neat feature but i cant really see its full potential.