Thanks for the replies.. I often play with my Photoshop and my rule is the bigger the picture (resolution/pixel) the better.. because when you shrink it or resize it, well it looks better..
1. BIG picture resize to "x" size picture = looks great
2. MID picture resize to "x" size picture = looks good
3. SMALL picture resize to "x" size picture = looks like a picture.
does this apply to DVR and Cameras?
Hope you guys understand my point.
Also i have seen comparison/demo of cmos 700TVL and cmos 600TVL, and 700TVL looks better. I don't know if it is a "demo thing" to suggest buying higher resolution/price TVL.