Depends really.

Oddkidd does cossie managment which comes in at a little over 2 grand.

Jamsport does Gotech at about 1300 plus injectors plus an EFi inlet.

APT does OMEX for about 2 grand.

Converting to Ford EFi (Fiesta Turbo stuff) from a tuner is going to cost about a grand if you were to supply the ECU and what not.

The Ford stuff is fairly limited and only really worth it if you're doing the conversion yourself, when it works out at a really cheap option.

From a tuner I'd be going for Cossie or aftermarket.

The next choice is where is closest to you, and who YOU trust to work on your car.