Yamaha DTXpress/DTXplorer/DTXtreme

Thanks emf thats made me think a bit.  IS the module on the IIISTD 
any different for the II, or is it just the softer pads, grey rack 
and coded leads.  Or and maybe the resale value (not that I would 
every sell it of course)

Let me correct the post for those who didn't understand it as I've 
been on the beer :)

I'm waiting to but a DTXPress III Standard which is due in the UK in 
the next month. It will probably around sell for around £799 (without 
bass pedal) via mail order, however I went into the local drum (and 
yamaha) shop today and they had a DTXPress II in stock for £799. I 
stated I was looking for a III so they offered to include some extras 
in the price 

For £799

DTXPress II Kit
Throne
Premier Bass Pedal (£69 normaly, 6000 series I think)
Drum Sticks
Next day home delivery and setup
1 Drum lesson
Local shop close if there are any problems etc.

Sounds like a good? or is it worth waiting for the III and paying 
extra.

What are the main differences?