Though i found great stuffs like - crowded cities - dropable torches - populated super arena - companion share and recruit - wilder monsters - and what not theres no mod that improves the castles in towns! I know its just fantasy but in medival courts nearly any ruler had mimes groups for entertaining amusements. The mod could be like they are always there - musicate and dance and sing and voila - the old cstles came to life! Just remember the great Daggerfall - already there they were not missing - so why in Oblivion then?