Removing a stripped bolt

[cookster50]

I was working on changing an intake manifold gasket on a 2000 Saturn SL1 and in the process of trying to loosen one of the power steering pump bolts I started to strip it. I tried a Gator Grip, which is a piece of junk and did no good. I also tried some sears bolt extractors but the one that fits on isn't tight enough and the next size down I can't get to fit on. Anyone have any ideas on how I can get this thing removed? I have hardly any room to work in btw, not even enough to be able to hammer a smaller sized socket on it.