Replace the swaybar. Get a good matched set of springs/shocks/struts. Also, from experience, a good set of four BFG KDW's will ride nice and improve performance a good bit as they are a quality tire. After that, your car should ride very well. If you want to go a bit further, but not spend much, replace the A-arm bushings with poly ones and also put poly bushings on the front swaybar along with new endlinks.
My ride sucks bad too right now as I have stock everything that is way past worn out at 132,000 miles. Next week, I'll be getting most of Maximum Motorsports Road & Track Kit which should turn my car into a handling champ.
Good luck. At the least, put on new shocks/struts and a swaybar.