I changed my shocks a few weeks ago because they desperately needed it. After some research I ended up going with the Pro Comp ES9000s because of the price and the local 4wheel Parts store had them. Shocks are relatively simple to install and I recommend doing it yourself if you think you can.

Tools needed:
-Metric socket set
-American Socket set (for the new shocks)
-PB Blaster/WD 40
-Breaker bar
-Pickle fork (steering stabilizer) and a BFH!!!

Optional tools
-Jack and jack stands

These were my 14 year old stock shocks on my 1993 4runner.
Front:


Rear:


As you can see they are worn out. In fact when I took of the rear shocks They didnt extend and you could hear the oil slosh around. Not good! Here are some pics comparing the stock to the procomps.

Fronts:


And the Rears:


Here they are installed. I was nervous about them fitting right but the lengths and clearances were fine.

Front:


Rear:


The last thing is the steering stabilizer. The stock one was piratically dry inside and there was oil all around it.

Before:


After:


Overall I am extremely happy with the results. The ride is 100% better than it was before. The shocks are pretty decent but if I had the money I would have gone Bilistines (SP).

Also the reason I didn't use boots is because I have heard the chemicals used on the road in Colorado get stuck, build up, and dissolve the seals on the shocks. Has anyone else heard this?

I hope this helps people thinking about changing their own shocks.