[Angel]

Possible compromise,

We make a fenced in area that contains hospital, unstick, bank(locks/safety deposit), mall,restaurant and 2-3 playerhouses/apartment. Outside of this area it's no holds barred. Every area i pk zone.

The inside of the fenced in area could even be a pk zone, but there are guards(NPC) there. If they catch you firing at someone, You get shot and throw out of the safety zone, When you die you got a hospital that is pk. You may return after a certain amount of time (days/weeks) to the safety region.

This would allow for a safe harbor for newbies and people that don't want to fight but leave the rest of era completely pk.

I'll also go ahead and steal Yocas idea. Business could hire protection NPC's to ensure there is no player killing in/around their property.
Just a idea.