Yes, lots.
On the contrary, the idea of suffering and "paying your dues" was considered incompatable with Christianity by Protestants and that was why they dropped purgatory. I think Tellos was on the right track when he said the focus was on "salvation" but that word still emplies "salvation from hell" which is really a tangental part of Christianity, not a central one.
Central to Christianity is the idea of a broken relationship with God, and fixing that relationship. If you fix the relationship then when you die you go to be with God again (Heaven) and if you don't then you are without God (in Hell). My own view of Hell is not "fire and brimstone" because I think that's as much an allegory as the precious metals and stones that make up the New Jerusalem.
Hell is a total absense of God, which means a total absense of everything, even "suffering" as we are able to understand it, an eternity in the void, and I can imagine nothing worse than that. Of course, for that to conception of Hell to work man needs to choose whether to accept or reject God, he needs Free Will.
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