Yamaha DTXpress/DTXplorer/DTXtreme

Hi all.
first of all thank you for your feedback to my last post about 
double pedals... i think i will go for the iron cobra jr.

Im thinking about expanding my set with a cymbal...
I hace 2 right now... 1 crash and one ride.... it would be nice with 
2 crashes and 1 ride (with the bell sound) i have the original pads 
that came with the dtxpress 2. i dont know how many things i can 
plug in into the 9/10 port but i guess i can plug in one mono cymbal 
like pcy 65 and put the pcy 10 on top of it? Maybe there are better 
options with other cymbals out there who are compatible with the 
dtxpress.  Anyone who have tried any other cymbals ?
 
I dont know what all of you gyus think but 1 crash like the original 
setup allows feels a little bit weird... and also i really want that 
bell sound that comes from real ride cymbals. 

anyway i would really appreciate to hear some thoughts and 
experiences about cymbals.

thanks in advance

Andreas