I would recommend the SVT suspension kit. The "lowering" will be barely noticeable and the ride will be much more planted without being too firm.
Item number is M-3000-ZX3
$247 @ tousleyfordparts.com
And while you've got the suspension off I would recommend MOOG front end links and a full set of poly bushings.
That all together should run close to $500 and will feel like a brand new car without being a boy-racer.