Most of my tools are made by Wiha (www.wiha.com). They are good quality tools and they have nearly everything in their range that you would need to service Macintosh computers, including the long Torx T15 screwdriver for opening compact Macintosh. I have a set of precision screwdrivers and some that have long shafts for hard to reach places. I have a set of tweezers that are very useful for removing dirt, fluff and retrieving dropped screws. Another useful tool is the famous black stick, used for prying things open and routing cables. This is probably the tool I use most after a number 2 crosshead.
For cleaning most parts I use a multi purpose house hold cleaner diluted with water. I have it stored in a plastic bottle that has a pump spay, that makes it easier to apply. I use toothbrushes, lint free cloths and sometimes a non scratch scourer, on the cases if they are very dirty. I also find a small paintbrush useful for dusting in hard to reach places. For cleaning and dusting circuit boards, I use a ESD brush and swabs soaked with Isopropyl alcohol. If the board is very dirty, I may try washing the the board which I will go through another time.
Next time, I will open up a Macintosh and run though the process in detail. Let me know if you have any questions or comments.