do you believe in a soul or of a continuous consciousness that leaves your body once you die?
Yes to 'believe in a soul', no to 'leaves your body.' I've recently undergone a change of mind, and below I'll describe the position I've ended up with. It's still rather tentative, and will probably remain that way until I find the time to do enough research to fill in enough details.
I view the human soul as a physical thing. I'm a Christian, so I believe that immaterial souls are possible and do exist (God, for instance). However, I currently view the case for physicalism (as opposed to mind-body dualism) as a philosophy of mind as far more compelling both Biblically and philosophically. I consider a human soul to be comprised of a human body. Obviously, the brain is the rather important bit.
My position is very unusual among fellow evangelical Christians though. Mind-body dualism (as a philosophy of mind for humans) has been the dominant position in the church for so long that any disavowal of it is seen as an attack on Christianity as a whole. I just don't see why physicalism threatens Christianity. Plus, there is a (deeply troubling and in my opinion highly counter-Biblical) idea among Christians that the physical world is something to be escaped from and is somehow less worthy of consideration than the 'immaterial' world.
So, unlike most of my fellow Christians, once my body dies, I expect my soul to be dead with it until the final resurrection. This doesn't bother me in the slightest. Nor am I bothered by not being composed of some 'special' immaterial substance. My physical body might be a little wonky, but I like it. Some people seem to be deeply offended by the idea that they might be entirely composed of meat, fat, and other physical stuff and think that it would automatically rob them of free will, personhood, etc. This sort of thinking seems awfully hasty to me.
The strongest arguments against physicalism I've encountered in mainstream philosophy so far are Frank Jackson's Knowledge Argument and John Searle's Chinese Room. (I can briefly describe these for anyone who's interested, but I'm a
very amateur philosopher so it may be hard to follow!)