>I seem to remember using 74LS245s for the bus interfaces -
>as I remember they are tri-state, and it should be possible
>to keep them in high-impedance state with pull-whichever
>resistors until the PIC is ready to talk to someone else.

There are buffers available designed for hot-swap use which are guaranteed
to keep the bus in a Hi-Z state until properly enabled I am not sure if
these are the ones that Jinx stated in his original post, and I don't have
any part numbers to hand.

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