Want an immersive, stealth based, RPG? Can't afford Deus Ex: Human Revolution? That's ok, because goHastings.com has the solution. Granted it's kind of a broken solution, but hey, for $9.96, you can't be too picky. Alpha Protocol is a action role playing  game from Obsidian, which  was not critically received. Though in my opinion,  it will scratch the same itch Deus Ex does. You can get it on the cheap for PS3 in this deal of the day.  

goHastings.com