Yamaha DTXpress/DTXplorer/DTXtreme

Hey everyone.  I've been a drummer for 15 years and I have moved into 
an apartment.  Obviously, I can't just sit down and play my accoustic 
set anytime I want to without alarming my neighbors.  I've been 
looking into the DTXpress and the Roland V- Club.  Can anyone here 
offer a comparison between the two?  I've played both in the music 
store, but I can't really tell much in a 10 or 15 minute session.  
Any help would be greatly appreciated.

Thanks!!
Bryan