Hi mate,
Your proposed upgrades will depend on what you are predominantly going to use the car for, what you want out of the handling kit and how deep your pockets are.
You could simply go for a set of springs to lower the car or there is a wide choice of coilovers available on the market.
A decent pair of anti-roll bars will certainly improve the handling characteristics.
The Powergrid adjustable endlinks will bring the angle of the knuckles back into line if lowered and solve permanently all the noises relating to the OEM links.
Brakes are another of the first upgrades along with the suspension to be considered.
I can help you with the supply of most of the stuff required to complete your upgrade.
I also have a Nismo S Tune suspension kit which is coming off a car this week and if this is of interest to you then just give me a shout.
Cheers,
Alex.