hi guys just wondering if you can help me out to clone my 1 hdd but with 2 partitions

?
i like to clone my hdd with cloning tool like norton ghost but it will only let me copy one partition not the whole hdd with 2 partitions,
i have 320gigs of hdd with 2 partitions and want to have it clone in my another 320gigs so that when worst come to worst i still have a clone,
do you think i can do that

? coz i read it in some thread that you can upgrade and back-up your hdd like it was the last time you used it,
opinions, suggestions, advices and helps is highly appriciated,
thanks for your time guys!