Thanks for the link but I think the cost of carriage to the UK would probably be more than the cost of the parts. I've no doubt I could have sourced them somewhere here but it was just so convenient to order the other style from my usual supplier. In fact, I think I prefer the style I've got because it makes it easier to mount onto the HDD cradle.
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Marcus 32 gig MKII (various colours) & 30gig MKIIa