TV or Computer Monitor for Security?

Hey guys, I am getting ready to open a business and wanted to get your opinion on what is my cheapest/reliable option for a security system monitor.  I am actually going to need 2 monitors.  For the first one, I would need a small basic screen that I can keep next to the DVR.  For the second monitor, I was wanting something a little bigger (maybe 20" or so) that I could mount on the wall.  That way, I can keep an eye on my shop without having to sit next to the system all day.  Will both TV and computer monitors be compatible with most security systems?  I am planning on buying a Samsung system from Sam's Club.  If they are both compatible, which would you guys go with?  Thanks in advance!

 It's video so I would go with a HDTV............& I would get the best resolution HD cameras I could afford.

You should be fine using a computer monitor and a TV, however "compatibility" will have to do with the type of computer you're using, their in/outputs, and how many video cards it has and is capable of supporting.  Those are your key concerns.  The type of monitor/tv are not really a concern.