Put a pillow border around her so that she can't roll off the bed, otherwise she'll be fine. Monitors pick up the noise even if they are not right next to the baby. Our monitor in Trixie's room is probably 10 feet away from her bed.
Also, look for the book "No Cry Sleep Solution." She has some good tips in there.
I actually picked up the No Cry Nap Solution after reading rave reviews on Amazon, just need to find time to read it now ;)