Room monitoring toddler + infant

I've been using a video monitor with DS since he was 6 months old and it's been a lifesaver. I still use it today at 2.5 yo bc he doesn't call out when he wakes up. He's content to sit around in his bed and wait for me so the monitor allows me to see if he's awake or still asleep without disturbing him. It also allows me to make sure he's not getting into something he's not - like climbing his bookcase, etc. - and making sure he's OK when he's sick.

I'd like to do the same with DD but I need a video monitor that's
(1) not 2.4GHz (will interfere with my wireless network) and
(2) has a scrolling screen so I can view both rooms when the kids are napping or down for the night.

Since I doubt I will be able to find this product, I'm wondering what you all have done to monitor two kids (toddler and infant). I'm envisioning a cluttered nightstand with a separate video and audio monitor... ack!

Thanks!