I know it is probably sooooo hard.. but I agree with freckles and boo...
I have heard that by night three, everything begins to settle down.
If your baby will nap in the crib, you are probably halfway there.
Just make sure that your baby is comfortable, warm, and well fed for the night.
PS: I think that most parents can tell the difference between normal baby-crying and 'distressed' crying? I didn't have a real problem with this with my son, since he slept in his crib almost from day one. (I couldn't breast feed). So, I am not sure if most babies would actually become 'destressed' or not???
But, the biggest thing that I have to say is that a baby sleeping in their crib is NOT cruel, it is not deprivation. (Just sleep deprivation all around if sleeping with parents bed becomes a necessity) My son's crib was always HIS space, his downtime. He was always an incredible sleeper!!!
Sure, there may be crying and angst, at first... it is an adjustment...
Give it a couple-three nights, and then see how you want to proceed from there.
PS: If there are things like benedryl or tylenol that tend to make your little one sleepy, I don't think a drop or two would hurt during the transition. (gasp!!! bad mom... I know...)