Yamaha DTXpress/DTXplorer/DTXtreme

Hi all,

I'm really excited that I've decided to make the change from the old 
Pearl to a Yamaha DTXpress.

I'm new to the electronic kit side of drumming, but have been playing 
an acoustic kit for some 15 years.  I've read a lot about the 
DTXpress, but have a couple of questions for any of you…

. I've had a couple of quotes, but what price should I be paying in 
the UK now?
. What are they like for gigging?
. I'll need to MIDI up a click from my keyboardists equipment, can 
this be done?
. Does anyone know where the best place in the North West of the UK 
to go for one?

I'll be checking in to this site regularly, as its EXCELLENT, so any 
info would be much appreciated.

Cheers
Simon