GTSBoy is on the money, mine is only a weekender buts gets driven hard.
BC BR coilovers
Whiteline adjustable swaybars, 24mm F, 22mm R
GKTech Pillowball caster arms
Superpro rear camber bushes
1.7 degrees camber front, 1.2 rear, 8 degrees castor
and thats all ive got so far. in my mind its a good place to start if you are short on funds. this is by no means how i will leave my setup. ie i will do pinapples etc when im not so lazy
This has cost $2100ish and im definantly happier with how it rides/handles through the hills. if you plan to do more track days then look at proper adjustable arms.
And of course the best tyres you can afford
on the brakes front the calipers are pretty decent, rda slotted rotors, better pads and braided lines will give a good improvement.