I'm not sure if there is a
guide on here. I bet there is somewhere.
Are you changing all 4 struts, springs, bushes etc?
The rear Struts are really easy and take about 20 min's per side. If you jack it up and take the wheel off, you will see a bolt at the base, and two at the top. Undo these 3 and it should come out. I can't remember if there were any others, but they will be obvious if there is. The springs and bushes are a little more difficult and involved. Now that I think about it I'm sure Sam20v has done a
guide for the changing the bushes etc. Do a search for their posts.
The front struts are ok, but take a little longer to do. You will need spring compressors and a spanner with a flexi head to do this. I guess there are a few on ebay. It is worth changing the top mounts and maybe the Anti Roll Bar Drop links at the same time. This should cost about £20 - £30 for both top mounts and both drop links.
Hope this helps you and gets you started. Also. Once you have done it, get e 4 wheel aligment done asap as the wheels will be well out and give you excessive tyre wear.