Bill has spoken... I will change the probe wires and add grounds.
I will also put the power and SMBus connector together and make two for daisy-chaining.
I'll also add a power switch. I'll leave shunts for the address settings though.
That won't leave much room for the components... but I think I can manage.
I'll see if I can post an updated design tonight. Maybe even include one for the MAX6655. That way if you buy one of each you will have two +/- 1°C temp probes, five +/-3°C temp probes and the additional voltage monitoring.
Let me know if you guyz agree... I just want you to get what you need/want.