I found a mod called 'Adventurer`s NPCs' that really help with the aesthetics of Vivec. It isn`t so bad when it isn`t so lifeless and desolate lol. This mod adds lots of new, generic npcs all over the place. I went for the B version because I`m already having problems with those damn Tribunal assassins and I don`t need friggin` vampires and bandits on top of that.
You can get the mod here -
http://www.m0use.net/~adam/
Sorry for you Xbox folks.