Darker than Black

A mysterious territory known as Hells Gate appears in Tokyo. At the same time, a load of people with special powers also appear known as Contractors. The sort of powers they possess are abilities like summoning fire, ice, electricity, making objects explode at will, summoning rain clouds, hijacking other humans/animals bodies and the one which really reminded me of Heroes is the girl who can locate other Contractors just by touching water - but only Contractors who are actually near water...

The main character is exchange student Li Shunsheng by day and Contractor-who-summons-electricity by night. Li works for an organization whose current aim seems to be helping other Contractors who are either being used or being tracked down to do naughty things.
Apart from Li's group, there is the gorgeous Misaki Kirihara - a policewoman and her team investigating the current Contractor situation.

The most recent episode is EP8 and watching the characters with their 'Hero' type powers has been rather interesting so far.
The excellent animation/production is by BONES (Eureka Seven) and the incredible atmospheric music is done by none other than Yoko Kanno (GITS, Cowboy Bebop). Most recommended to those who are not watching this.
Folks in Japan can catch this every Thursday night at 1:25AM on MBS > watch the promotion trailer in the Otavids section.