[CentOS] Three Identical systems - short cut to setting up the drives?

I am building three identical systems. Well they will have different host names, and with time the software setups will drift. But at install time they are identical.

Is there some way, (with dd I might guess) to do a hardare level copy?

All three drives are Hitachi DK23DA-40F (40Gb). Supposedly factory reconditioned (they are in sealed bags with a drive sticker stating: "Refurbished to Hitachi Global Storage Technologies Specifications").

I would want to copy the paritition table and my 3 partitions (/boot, swap, LVM (/ and /home ext3 partitions in the LVM)) and all their contents.

Thing is I only have one USB drive enclosure so I would be running from the drive I want to copy from.

I would hope this is faster than 2 more installs.