Hi K.! Congratulations!
I cannot say enough about the safety 1st monitor that I have. There are 2 hand units that work when not plugged in AND 3 base units so that you can have 1 base in each childs room. The hand unit works on a scan so it scans each monitor when all 3 are on or you can have it stationed on one of the monitors. The hand units also work as wakie talkies. I LOVE IT. It is a little expensive $129.99 at babies r us but I wouldn't give it up for any other.
It is so clear, works great anywhere in and around my house even with all our "gadgets" that normally would interfer with a 900mH device and hasn't caused me any issues at all. I hear my little girl perfectly. When my friend comes over with her child she uses one hand unit and one of the base units to listen for her child. She told me if I EVER see it cheaper to let her know.
Here is what the write up says: The Safety 1st 900 MHz Home Connection Monitor System allows parents to monitor up to 3 locations within the home. The selective monitoring, color coded system allows parents to listen to only one room or up to three at the same time. The perfect home monitoring solution for today's active family.
Here is the link to babies r us: http://www.toysrus.com/product/index.jsp?productId=226579...
Good luck in your search!