ok, here are 2 pictures. one of the schematic and one of the breadboard view. this is my first proper time on fritzing, so it does look a bit cack. but hopefully you get the picture [no pun intended]
i did not put in the pots, as they just made everything look harder to see what was going on. but the pots will go in the same way they go in through the multiplexing tutorial given in the arduino website
this multiplexing is just working through 16 channels per analog in, using 4051's
http://www.smokingbunny.co.uk/arduino/breadboard.png
http://www.smokingbunny.co.uk/arduino/schematic.png
many thanks
lewis