I decided to start my Blue Iris NVR build with a Mac Pro I picked up a few years ago for $300. It has the fallowing Specs:
2 - 3.0Ghz Intel Xenon Processors
16 GB RAM
ATI Radeon HD 2600 XT
Apple Air wiifi card installed
three free PCIe 1.0 slots
two onboard 1Gb ethernet interfaces.
Cards and...