You've made a great decision - the Angelcare is brilliant.

I just wanted to add that monitors are great for more than just knowing when your bub is screaming. Both my girls generally wake up happy so they don't cry. The monitors let me hear one of them chattering away to herself when she wakes up - lets me have a few minutes to finish what I'm doing but still keep an ear on her so I know how long I can leave her before she gets upset.