Thanks for the response Ben. I forgot to add one not about the backplate issue. Im looking on ebay and have come across fully assembled backplates with headphone jacks and hold switches. Havn't seen 60gb ones but found 40gb ones. When you mentioned the thicker ones use different logic board, here is my question. I looked at the power requirements for the 20gb mk2006gal and the 60gb mk6006gah and both say 500mah! Probably not an idea to try this, but if the power is the same, why wouldnt the logic boards work out? Wondering what you think. Thanks again for giving me some info Ben.