Thanks for the positive input.
I sent you a mail or the such Andy which I guess you didn't recieve 'cos it had the explaination to the 127 thing; the link above is technically correct but you need to take it one step further - as the loopback address or the address of the local machine it could be loosely defined as "home"...
Right - off to finish the framehead and get the chassis into 3 dimentions...