Pressure:
Tire pressure requirements depend on the tire and the car setup. You're best bet it to either ask what other people run for that tire (on a similar car) or use a pyrometer to take temperature measurements inside/middle/outside. Generally speaking slicks like slightly lower pressures than street tires. You can tweak tire pressures to balance understeer/oversteer. For understeer decrease front pressure or increase rear pressure, take note of resulting tire temps and wear patterns. Reverse for oversteer.
Coilovers:
2-way adjustable is nice for fine tuning a setup but is probably overkill for a novice.
Sway bars:
Stillen, Hotchkis, Whiteline, all adjustable. The Stillen is a little more compliant, the Hotchkis is the stiffest.
Alignment:
This is what I run, your mileage may vary.
Front
Camber -3.5
Toe -0.02
Rear
Camber -2.0 (would like -1.8 but don't have the longer arms)
Toe -0.10
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