Sorry if this has already been posted:
If you are upgrading your hard drive, give this a read:
A great guide on how to Clone your Hard Drive using an enclosure (this enclosure is a great one: http://www.newegg.com/Product/Product.aspx?Item=N82E16817145135 )
Also shows how to test it by targeting a different start up volume.
http://lowendmac.com/ed/royal/08sr/clone-mac-os-x.html
If you are upgrading your hard drive, give this a read:
A great guide on how to Clone your Hard Drive using an enclosure (this enclosure is a great one: http://www.newegg.com/Product/Product.aspx?Item=N82E16817145135 )
Also shows how to test it by targeting a different start up volume.
http://lowendmac.com/ed/royal/08sr/clone-mac-os-x.html