Ranma Graphic Novel 20 has the end of the Martial Arts Cheerleading arc and 
the whole of Ranma meets his mother.  The final is an amusing little story 
about the ghost of a very large woman who won't go to heaven until a guy 
steals her underwear:)
 

Have y'all been watching inuyasha on cartoon network?  I've enjoyed the 
graphic novels, but the anime is the bomb.  Very nice, I'd say as good as 
Ranma OAVs.