Been studying what I can on these, but its abit daunting. 
  
I need a DVR, networkable to my pc for viewing(and to pc for storage/archive)),local (monitor view), motion detection,hi res 
storage (720x480), 4ch, 30fps per channel,   and some sort of 
remote alarm for motion detection. etc. 
  
My dealer suggested the Everfocus EDSR400, which I see 
while not generally well viewed, the complaints are  
from very advanced folks...  
  
I've pretty much settled on SHC-740,or SDC-415 camera's for 
input to this DVR.