Yes, Dumbledore said there were worse things than death. He was not afraid.
I hate Snape so incredibly much but I think he may be g-g-goo-good!!!!
And if Snape was on Voldemorts side, in the 5th book, why would he have gone to warn the Order when Harry told Snape Voldemort had Sirius?
The only thing is, Snape had better watch out because, even if he is good, if Harry catches sight of him, he'll murder Snape!!!!!!!
Not that I'd mind.