as for brakes, stick with stock for now.. you could put that $800-odd dollars into your engine.. worry about brakes later..
as for suspension, you have the choice of coilovers or shocks and springs.. read up on the differences between the two.. coilovers are more expensive but remember you get what you pay for.. i've had kyb agx shocks and eibach springs for over a year now and they're great.. only $800 setup right there.. it always depends on how much money you have to spend