Yamaha DTXpress/DTXplorer/DTXtreme

Hi everyone,

I have been drumming for about 15 years, and I am very interested in entering
the e-drums into my kit.  I have looked some and focused on the Yamaha DTXver2 or the DXTpress.  I have played on the DTXver2 but not the xpress.  I noticed the difference in price, but by just looking, can't tell much difference.


If someone could tell me the difference I would sure appreciate it. 

I am also looking into getting one or the other sets.  Where are some of the better places to get them in the U.S.  

Thanks in advance for your help.

Chris