Cameras & Camcorders

[NPCS]

Hello,

I am looking for a wireless surveillance camera.  The catch is though; I need it to be battery powered.  I have found many wireless products, but they are truly worthless when I have to run a power cable to them. (To me, that's not wireless).  Anyhow, I have ran across a few products from various websites...but do not like the details I find. The three main features I'd need the camera to have is 1. Battery Powered 2. Wireless Access to either the network, or to a server 3. Fully DVR Capabilities.  I understand that micro SD cards are the new thing, this would be great, but I have not found a battery powered camera that has DVR on a camera card, but instead a server.  I assume this is because the DVR features require more power, thus limiting the camera lifetime on a battery to be a significant amount less.  I could get by if the camera sends the video to a DVR server elsewhere. (Preferably with a decent distance too!)

Thanks for any suggestions!