> 
> James,
> 
> Why not 28 pin PIC16F72 with I2C and SPI?
> You can program it to handle data in virtually any way.
> It eats 20 micro amp at 3V 32 kHz (You didn't specify
> speed)
> 

That is most likely a much better suggestion and one that I had already
passed on. The noises that I hear when I say that are about not having a PIC
programmer available (but I do and I can write the code for it) and a lack
of human programmer time (but I have ready made code for it)

I think I've got them convinced to use the standard shift registers...

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