Dead Space man.
Right here baby. Workin' on Hard mode.
Dead Space plays out like a movie. Turn out your lights and put your game face on, and if you liked the action in RE4 you'll dig this for sure. The atmosphere and the monster models really set the tone for a fright fest through a good majority of it. The graphics are good but the settings can sometimes seem bland and the puzzles uninspired. There's a lot of room for improvement. But the first play through delivers excellent thrills. You WILL jump in your seat if you're really paying attention to and enjoying the experience. It's challenging, sorta. There's difficulty settings anyways, if you're a hardcore gamer I'd try to beat it on Hard straight away.
As far as renting material goes, this is as good as it gets!