Just spotted this (NTDWM) which currently seems to be good value:
Zetec 1.8 Alpha engine management/ kit cars on eBay (end time 26-Mar-11 10:07:14 GMT)
A mappable ECU preconfigured for a 1.8 zetec, but could be remapped obviously, but what the title doesnt tell you is that it includes:
wiring loom
air filter and tube
lamda sensor
inertia switch
air temperature sensor
coolant temperature sensor
fuel pump and filter
warning/diagnostic lights.
Thought someone may be able to use it.
Regards
Hugh