Home power consumption monitoring using a veris board, unless you want to hack modbus, probably easier to get an H8803 modbus/ethernet board and an E30C042 if you have a bunch of lines to monitor.

Granted, if you don't want to use Veris's bundled (and expensive) equipment. 0-1VAC current transducers can be found cheaper elsewhere, and somebody from Bulgaria is selling SNMP-enabled ADCs (not sure what resolution).