I assume you charged the battery on the car, if not, the chances of blowing the ECU are remote. Even if you did charge the battery on the car, it's by no means certain that it killed anything. Engine bays are an incredibly hostile environment for electronics, therefore these items are necessarily robust.
Have you checked for a spark? If there is, then it may be a fuel issue. If not, then it could be a failed sensor cam or crank (I forget which) being the most likely. A failed temperature sensor is also an outside bet.
Lack of fuel could be due to the cut-off switch (near driver's left knee). This is only supposed to activate in the event of an accident, but is worth checking.
Do all the lights work correctly? Engine Warning, ABS and SRS should all come on and go off. The oil and Battery lights should stay on.
Re: Minor electrics
Do the windows and wipers, etc still work?
After recharging the battery, mine sometimes get confused. In which case, simply disconnecting one terminal for ten seconds and then reconnecting sorts it out.
What fuses blew and at what stage? Also, have you checked that none have blown again?