I read this post about hell and felt disturbed and concerned. The subsequent discussion has not completely reassured me, either.
I've done some posts on hell, and there are a bunch of links here.
Another doctrine that we are tempted to tone down and soft-pedal is the doctrine of sin. I remember in my first year of Bible college being starkly convicted by Peter Jensen's emphasis on our belief in sin and judgement as the only thing that would steel us for the ministry of gospel preaching to people who didn't want to be told about it.
UPDATE: link corrected, thanks Hon