Thanks Toss.  I am leaning that way simply because adding another layer of setup/maintenance will mean my sister will have to lean on me even more to troubleshoot should something go wrong.  I am pretty good with networks, but ip addresses, etc vs plug and play BNC sounds like a no brainer to me.  The only downside I can see is it limits choices for cameras.  With IP, I could use some wireless, some wired, and pretty much get them anywhere.  With HD, I may have more options beyond Q-See, but they seem to have what I need. 
  
But I am going to wait to see if anyone else has any advice. 
  
Thanks 
Jim