I concur --
I was in the same position with my 1200 drive.
could not get DD to work with a USB enclosure.
In the end i had a quick work with the IT / Sys admin bloke at work
and he was ok with me lifting the cover off one of the older Dells we had floating around .
With the aid of an IDE cable and an ubuntu live disk I was able to dump my drive onto a usb stick and then take it home for working with.
I used DD if=xx of=xx command as others have already suggested
Nick