Yeah I Agree Damion, just glanced at the information without reading the details. Now you got me excited about Commodore's Original Version. Less than 200 model's were manufactured in 1994 so how people in the UK do you think own one? 
Probably very few. :-) I recall maybe one or two for sale over the years. You probably know about the later towers produced post C=, I've never owned one but they're comparatively easy to acquire.
Regarding games, there weren't per se any A4000 specific, but you might loosely count the few that required more than the minimum (or close to it) spec to run. There were a fair amount released for the later graphics chipset unique to the A1200 and A4000 series (AA or AGA), you can read about those
here. (Things quickly moved on, so there weren't many games that made full use of those machines' capabilities.)
