I was not planning on spending this much so I was hoping there was another option. What about wireless intercoms? Are there any good ones out there?

Thanks

"I mostly want it to monitor my children sleeping..."

Security, Video & motion monitoring software running on computers can now be had at a very reasonable price.

Hardwired camera's are best - but you can use wirelss. But the static in the wirelss tends to confuse the system.

Computer ON.

Security Monitor program: Running

Any change in monitored area(s) - (computer is scaning video) - the computer raises whatever alarm you desire.

Look up computers, video monitoring, security, etc.