Xpwn3ntial said:
Duran Duran does the theme music.
Well, you know
<spoiler=Unless you want to have the English opening><youtube=HE7SOXBFeA4>
Personally, I think the English one is better, especially since it fits the series nature that most of the episodes take and begin with, instead of that incessant shutter clicking and cheesy crap that sounds like it should be in a 70s or 80s sitcom. Or in one of the Chips Ahoy commercials.
But I would recommend Speed Grapher as well. Other then that... hm. Probably everything has been said already, but I always thought The Big O was rather realistic. I mean, besides the guy piloting a big ass fucking robot, he's basically an amnesiatic batman who loves an android.
There's also Cased Closed (its called something different too, I know, thats just what I know it as)
Blue Gender was somewhat real (aside from fighting insects in mechs), then again, I'm probably just a big fan of the show.
Lupin the 3rd is pretty real.
ANd if you want supernatural, Paranoia Agent and Hell Girl are both realistic, since they deal with real issues and things like that with the supernatural background. Hell, in the latter, the main human protagonist makes a bunch of remarks to his daughter that if she doesnt drink her milk, she wont grow a pair of breasts (which is creepy, but always struck me as the most real thing an anime character ever said).