Looking for some advice please..reading all the other threads has made my head hurt !

Wanna get a little more bottom end and maybe earlier spoolup from my RA (99)

Dont wanna spend all my pocket money as brake kit and Coil overs are on order !! S/S exhaust right through, HKS induction kit.

What do I go for ? hks type of elec Boost control, Dawes device or save up for an ECU ?
What else might be advisable with either ?

Thanks.