You will need,
Jack, Jackstands.
Spring compressor.
Socket Wrench.
Braker Bar.
17 mm socket
14 mm socket
12 mm socket
12 mm wrench.
Vice grips.
Pliers.
The 17 will remove you wheels and the lower bolts on your struts, and the top nut on the strut.
The 14 will remove the anit-roll bar and the brake lines and the nuts for the top of the front strut.
The 12 is for the bolts holding for top of the rear struts.
First, after taking off the wheels, loosen the retaining nuts on the top of the struts.
FRONT: There are three 14mm nuts holding on the strut in the top, as well as a 14 (or 12, not sure) holding on the brake lines to the strut. After that, loosen the four 17mm bolts (2 each side) on the strut on the bottom. Then, slide the strut down and out of the car.
BACK: There are three 12mm nuts holding the strut on the back. These are located under the rear cover in front of the speakers. You may have to pull the backseat forward to get access tot he bolts. These are tricky, and are located in a tight spot. After that, four (2 on each side) 17mm bolts holding the strut to the rear supension. Also remove the anti-roll bar with the 14mm socket. The nut might just spin the bolt, use the vice grips to hold the bolt and then loosen the nut. To remove the brake line, pull the metal tab out with the pliers, a flat head screw driver might be used as well. Now they're out!
To remove the spring, tighten both sides of the spring compressor to the spring, the run the center bolt down untill teh srping compresses. Then remove the 17mm nut on the top of teh strut under the dust cap. Make sure to grab the spacer! Then pull the strut apart. You lowering springs might be small enough to not use the spring compressor to put them back in.
Then, repeat everything backwards to put them back in. The rear struts are difficult, owing to the small space.
New struts would be a very good idea, but are not needed. A KYB GR-2 would be a very nice strut to get.
Thats about it i think, click the link in my sig, and you can see what one looks like with coils! (mind you, its gotten lower since the pics.)
GOOD LUCK!!!