Keith Olbermann illustrates the current health insurance issue more succinctly than I ever could. Watch at least through 1:45 for the important stuff. The rest is a rant, but a very good rant, filled with a lot of details and dollars.
The argument is not about socialism; it is about for-profit corporations playing with our bodies as if we were a fleet of automobiles that need routine maintenance and repair. It is about corporations that can only make a profit by limiting their expenses. Paying out claims is an expense. It is ultimately about corporations selling you services they have no intention of honoring and for which you have almost no appeal.