I have a 2000 'S' and did this right after I got my car last fall. I had no experience so it was a challenging job at first. Learn on the first and the second goes easy.
I used Pelican Part's method for the front with an added twist where used a nylon strap to also compress the strut piston down to the reduced height created by the spring compressor. I was then able to easily pull the strut out from under the fender.
On the rear I used this link ->
http://gwl.rmsolo.org/hacks/suspension/index.html expect this to take a little work. I did a variation on this also where I loosened the eccentric bolt on the wishbone. You will need to mark it so that your camber is put back to where it was...or you can do like I did and get an alignment (I highly recommend this).
I used Sport on rear and HD on front (Bilstein). You can use HD on front and back. Sport are a little stiffer.
I got my orders from the following:
autopartswarehouse - HD (These guys were super fast with delivery. They have about 5 different websites under different names). Also got my bump stops and strut bearings here too.
eshocks - (Don's Sport Vehicle Sales. Took a long time but they were much cheaper then others).
If your husband has worked on cars this should not be too difficult. Make sure while doing the job you checkout the rest of the suspension. The problems you describe might not be the shocks at all but something else, or maybe just the strut bearing.
Good luck...you'll learn a lot and feel good about saving a lot of money. If you don't have time to do this and can get the parts yourself and have an Indy install for say $300 to $600 then it would be worth it if you don't want to wrestle with your car. I did mine when it was cool weather so it really made it more pleasant.