Checking the stuff you described, they sound like all the stuff I rented on video, and rewatched a lot...
Here's a few new shows:
Psycho Pass - future cops with Dominators, guns with sensors that scan people's probablility to commit crimes. It has 2 seasons, and both are good. The 2nd season is especially polished.
In this list, this one is probably the most gritty and fits your theme the most.
Koukaku Kidoutai Arise - Yeah. Its just more Ghost in the Shell so just continue on.
There was an OVA a few years back, and a new anime series "Alternative Architecture" just started this month (KK: AAA).
Suisei no Gargantia - It does have a future-y robot in it. But just one that gets black holed during the war against aliens, and stranded in what looks like present day. Except there's no land, anywhere. So ppl live on a ship built from many many ships. The story gets damn interesting as it goes along. I totally recommend this one.
Tiger & Bunny - Kinda futur-y super heroes show thingy. Its a little more kiddy but its fun. Check what it says on wiki, and decide for yourself.
Rakuen Tsuihou: Expelled From Paradise - This is a movie from last year. High-tech robot pilot girl, low-life scavenger guy. Facing off everyone. With rich ppl having a holiday life on cyberspace, while the poor live on earth and eat dust. Should get a few ticks from what you're looking for.