I would suggest checking out Getbackers. There are already several episodes in the series, and it is one of my personal favorites. Now I've never seen Death Note, (mostly because it's too popular and that turns me off) but I am a reluctant Bleach fan, and Getbackers pretty much gives me the same feeling as far as awesomeness is concerned. I realize that I'm not actually being very descriptive, but it doesn't cost you anything to check it out, so no harm no foul, I'm in a lazy mood.
As a secondary option, check out Ikki Tousen.