Come to Omaha in September and watch the pro's do it. ::
1st thing, buy lots of penetrating oil and spray every thing several times before beginning. You'll need a jack, jackstands, ball joint seperator, tie rod seperator, spring compressor, BFH (hammer) wrenches, socket set, breaker bar for said socket set BFH again. :: and lots of patience.
Total control products has a good set of direction for replacing control arms. You can print a copy for use. If you look at it for a while; it becomes clearer what needs to be done.
If all else fails ask specific questions because there are a lot of people who are doing this/have done this. I'm in the middle right now and will know a lot more soon.