Creating clone of a HDD including boot partition

[nagios]

Hello, 

I have setup a tailored made configuration (1 UFS partition + 1 swap + boot sectors) for some hardware that I am reselling and would like to clone one existing HDD (tailor made) and be able to dump to another new HDD.
 
System is running pfSense with FreeBSD 7.2 and soon 8.x 

What would be your suggested method to achieve this goal. 


Thx. 

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