Westside Story
Fiddler on the Roof
Mary Poppins
Sound of Music <--dont like
Singin in the rain <-- one of my all time favorites
The wizard of Oz
The King and I <-- was in it in high school
Oklahoma
Music man
Little shop of Horrors
Grease
South Pacific <-- was also in it in high school
edit: oh yeah..and chitty chitty bang bang...:exnbp:

I am sure there are others, just cant think of it right now.