Just wanted to mention that I installed Monroe Sensatrac struts two weeks ago in my GV. I really like that style of suspension where the spring is separate from the strut, it makes changing the struts very easy. Just put a jack or jackstand uner the control arm, remove the two bolts at the bottom of the strut, (hopefully not seized in, one on each side was on mine), and then take the big nut off the top, inpact gun works best. Out and in no problem. Saw the difference right away. Already been out on a "stock friendly" hydro line trail last weekend, and they still seem to be good.
Now I know I do need rear shocks too, but at least I already have those picked out - KYB Gas-a-Just. I just put a set of those on the back of my dad's GMC Safari and it's like a night and day difference. The rear of that van used to bounce after every bump and now it just stays flat and solid. Really feel the difference in the neck and back. If you find you get neck and/or back aches, maybe you need new or upgraded rear shocks!
James