Yamaha DTXpress/DTXplorer/DTXtreme

Hi, I am a drummer who wants a electronic kit to practice on only, due to neighbours and 
family. I have an accoustic kit for live gigs. After being self taught for the last 10 years I 
want to get lessons and improve technique.

I am considering a DSXT10 as it's on sale for $AUD3500, can anyone comment if it's a 
good kit? Why was it discontinued and is it a loud kit given that it has shells?

I would like some advice on which would be the best kit in terms of quality and value for 
money. I am considering buying a roland TD-3, TD-6 or yamaha DTXII or yamaha 
DTXTREME. I am most after a kit that will offer the best feel and sound pound for pound. I 
don;t mind paying a little bit more for the kit as long as it's worth the extra money.