Thanks . Personally I don't mind the screws showing either, but I think it was hybrid8 who thought they could be better. Your ideas for a hidden fixing system would be welcome. I've given it a little thought but I've really been concentrating on other aspects of the design. It shouldn't be too difficult to come up with something nice & simple which is available off the shelf if possible.
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Marcus 32 gig MKII (various colours) & 30gig MKIIa