Just throw the book at it...
				I have for many 
				years been hooked on Factory Service manuals.  The 
				aftermarket books in some cases come quite close, but in every 
				instance I have seen, nothing compares to the factory manual.  
				And often the aftermarket manuals are not much better than a 
				guess.
				Since owning my
				Jeep Wrangler, 
				I have had electronic versions of the manuals.  I have 
				found this to be extremely convenient.  I don't have to 
				have the book with me to reference a section and get some 
				advice.  I can print a page or two and keep them with the 
				car, or provide them to the place I bring my car for service.
				With this in 
				mind I didn't buy the hard copy manuals for my Wrangler though I 
				did buy a half-way decent Haynes for the Cherokee.  I have 
				the electronic version of these Crossfire manuals and they've 
				been invaluable a number of times.
				I guess the 
				reasons I bought the hard copy are many:
				
					- 
					
At heart I 
					am a collector so the idea of having the hardcopy to put 
					with the tools 
					really appealed to me.
 
					- 
					
Sometimes 
					it might be nice to reference the book without coming into 
					the house
 
					- 
					
It could 
					happen that I can't see the manual on the computer (power 
					fail or disk crash?)
 
				
				When I saw a 
				chance to get these for a reasonable price I grabbed them.  
				I guarantee that if you work on your own car, these books or the 
				electronic version take most of the guesswork out of it, and go 
				a long way to prevent you from making costly mistakes in time or 
				improper service techniques.