ehh fuel pump is fine - its a safety feature - wont improve anything but ensure u have adequate fuel pressure
FMIC is a waste of time - no gains to be had over the TMIC setup till you start looking at higher horsepower figures - then again in saying that - quite a few guys on here have cracked 11s.. and consistent low 12s with either the std TMIC - or an aftermarket version.
ECU varies from brand -> tuner -> installation
in my opinion - leave that for a while.. do the suspension thoroughly - an DECENT suspension setup completely transforms the car.. really lets it utilise its natural talent.. plenty of threads about simple HP gains to be had - do a search - Verso is a cheap option - else a autronic/motec if u plan on doing big mods at a later date..
my $0.02