Big Brake kits and Coilovers

#452-LE

We all know that modding our Z's is a sick, disgusting, and contagious habit. And to make matters worse, it's lightening the weight in our wallets quicker than adding it. However, one may state that it is better than loosing all of your teeth, alienating yourself from society, working at a truck stop for spare change, and being found purple in a ditch.

So, in efforts to keep feeding this mod-bug I am looking to both add a big break kit and coilover suspension to my money pit. Below I have narrowed down a list of brands to suit both my desire for a quality product and my greenbacks spending limits. My driving will consist of mainly casual street 60%, spirited street 35% and the occasional track day 5% (once the AT can handle the force-fed power of the TT). I would want the wheels to be tucked nicely, but not hidden.

With that in mind, I would like something close to or smoother to the stock ride on the street and easily adjustable to firm-up for spirited driving. Is this even possible???....

*Big Brake Kits: 6 or 8pot front/ 4 rear:
-AP racing
-Wilwood
-StopTech

*Coilovers:
-HKS III
-KW V3
-Tein Monoflex
-Tein Flex

Will anyone please shed some light on the pro's and con's from personal experience of each? Where should I buy the components? What other suspension mods/components to complement the 255's up front and the 305's in the back? BTW, on 20's. Spring rates? What meat should I use in the calipers?

Anything else? Opinions/ questions related to helping this brainstorming process are greatly appreciated!!

__________________
'06 R6 track,'06 R1-LE track,'09 848 street,
'11Duc Multistrada 1200ST, '07 STi T-back
'09 GTM stg2 TT-370Z-7AT (470whp/ 422wtq @10PSI)