Where to buy a good Nanny Cam?

I am wonering where to buy a good Nanny Cam or security camera. Is there anyone who has bought one that is happy with it? I would like to be able to set it up and have it record for several hours with audio, and then I could watch it when I get home. I dont want to spend $500, but I also dont want one for $25 that is cheap and doesnt work. Looking for something decent...



http://www.amazon.com/Baby-Security-Talkback-Activated-Compatible/dp/B019HDNLXS