Hi DontGetMeStarted, companies such as ADT, RAC etc supply/instal your basic burg alarm for a few hundred dollars but regain their costs on the monitoring contract. Im sure everyone could appreciate that the cost of labour for 1 or 2 guys for possibly half to a full day wouldn't be covered by the upfront cost. They will want to sign you up for a few years at a pretty high rate. These basic systems are very limited in my opinion ie. no use if you have pets, no perimeter protection so you can arm up while your family is asleep.
If you budget is @ 1K you may be better off with a do it your self cctv system, fairly easy to instal if you feel comfortable throwing cables through your ceiling space. Just dont install the DVR where it to can get pinched. Even these cheapies have network capability, which not only record but can be viewed on iphone or android for free.
I'm a police licensed consultant, feel free to PM me with any questions you may have.