Shocks/struts question
 

I am driving a 2000 Park Avenue. I love the car, but am used to driving smaller cars (old....er....classic...Saabs). I think the car has a self-leveling rear end, but I seem to be bouncing around while driving over dips, etc. Is it just the car? If it's the front shocks or struts, what do you recommend?

Thanks for your time.....

NittanyLion