I'm hoping it doesn't come to a civil war but that depends on what happens with this gun control stuff. What I see is an economic collapse and further divide between the left and right. A lot of nanny state dependents are going to be in for tough times when the government is no longer able to support them. Survival instincts will lead to a lot of violence as people try to steal what they aren't given by the government and things will get ugly. Unfortunately I think the more radical on the right will attack government installations and troops and attempt to get control.
In short either Obama will have enough momentum to take over and turn us in to a disarmed and fearful people under a socialist dictatorship or after a protracted violent period conservatives will rule by military decree. Either way we're ****ed.