In my opinion, you could easily get rid of 2/3's of the government, save a ton of cash and STILL have all the services you mentioned... with money left over. I'm not saying no government. But what we have now is so hopelessly corrupt that to try and cure it would be roughly akin to treating level three cancer with prayer sessions. It's just not gonna happen. Big business and government are too inextricably linked to be seperated.
It is further my opinion that these criminals will have their will and kill millions of us before people stop all this rhetorical bullshit and actually DO something.