Unfortunately, there is a lack of NVR reviews. When I bought my E2 I thought "up to 5MP" in the spec is all I really needed to care about, but when bought my first 4MP and hooked it up to NVR I ran into "wtf"... Perhaps newer firmware has improved the performance, but I have no way of telling that. Anyone who has bunch of 4MP or higher MP cams running on E2 at high bitrate can comment?
This is where I a got my I2, btw the difference is $100 with shipping