Yamaha DTXpress/DTXplorer/DTXtreme

I have been trying for a year to get going with a freecycled hohner acoustic kit and a freecycled dragon practice kit bit one is too loud for a house with a 2 year old and the other is too quiet and soulless. I have decided I need a dtxpress iv special in my life to finally get it on and become a drummer.
I am in the UK and would love a second hand kit, please if anyone is thinking of upgrading and would like to offload thier kit at a reasonable price please get in touch with me, any tips and advice of any kind would be gratefully received, 
My 2 year old boy loves drums too, he is going to rawk!
email me by all means
denim_demon2003@...