I use an appliance from Smartvue - the Smartvue S9. They have a very small version - the S9i - now that has 128GB of SSD for ~$700 that will handle 10 cameras. http://smartvue.com/products/index.html I have been running the S9 version for a little over a year with only a few issues. It's been very reliable and easy to use. It actually runs Fedora under the hood! Shawn