If you don't like what the condems are doing (and I for one CERTAINLY DO NOT) this is what you should do.
If you live in a constituency where there is a lib dem MP you must write to them and tell them exactly why you won't be voting for them or any of their sort in any elections (council/national etc).
With enough pressure, from constituents etc, a fair amount of them will start to want to rebel. Especially against up and coming issues like the NHS bill - which apparently most lib dem back bench MPs hate.
Soon enough the wheels will start to fall off this sad government and they'll have be a general election much sooner than some think.
After all, they have absolutely no democratic mandate for much of what they are doing. The Tories haven't actually won an election since 1992.
It's about time the lib dems found their backbone and acted in the way that they claimed they would when people voted them in. It's only their pathetic sycophancy that is allowing this government to cause the wreckage it's begun, literally beginning to ruin thousands of peoples' lives.