I bought an Angelcare monitor also and wouldn't feel comfortable without it. They are more expensive ( about $180-$200) but the breathing alarm went off once with our little girl and it basically paid for itself a million times over. Other handy features are that you can use it as just a sound monitor without the breathing sensor attatched, it has a visual display on the parents monitor, so you can "see" if your baby is making noises (very handy at parties when it is too noisy to hear), and both parent and baby monitors can be battery or mains operated, so you are not wasting money on batteries all of the time. Baby monitors tend to drain batteries really quickly when used over night, so remember this when purchasin a monitor. Enjoy you bub!
Rachel, SA, mum to Ella 11mths