After having a look around and following this thread the thing that strikes me is the way that statistics are put together is confusing , the wikipedia page on uk gun crime highlights this imo http://en.wikipedia.org/wiki/Gun_politics_in_the_United_Kingdom
Tellingly they list injury in relation to gun crime to include being struck by the weapon or even threatened!
I don't think anybody is arguing that gun crime doesn't exist at all over here as i think somone has already mentioned that genie is well and truly out of the bottle , but mass shootings do seem to be thing of the past (i hope) and shootings of police officers don't seem too common my understanding is that the majority of gun crime seems to be people being threatened with guns (many of which seem to be replicas or decommisioned) , violent crime isn't going away , to think so would be stupid , so expecting violent crime to drop because guns are banned is naive , people will obviously just pick up a knife or even a hammer if they want to really hurt or kill somone , what i think does decrease is the ability to kill lots of people in a short space of time.
Now one question i've got to ask the americans posting , is armed home invasion such a big problem over there? It's been cited as a reason to own a gun many times in this thread , but to my knowledge this is still pretty rare in the uk.