For Anime I'd say watch Darker Than Black, Black Lagoon and Devil May Cry, if you're into watching kick ass fight scenes.
For Manag there's lots of good stuff to read, some comleted series that you might want to check out are:
Majin Devil (action), Ai-ren(Seinen) and Midori no Hibi(Comedy, Romance)<---(an odd combination)
And for some currently running mana I would recommend Air Gea and Tenjou Tenge by Oh! Great, History's Stongest Disciple Kenichi, Hayate The Combat Butler and Mahou Tsukai Kurohime