Basically there's several type of cctv camera out there in the market. First narrow your view on
1. IP Camera - for remote viewing only (recording require?) this has the least hazard in installation but will be compromised on the recording and rather complex in setting up. Cheaper type are just fixed focal lens where slightly more expensive are those with Pan Tilt or even audio transimission and recording. It really depends on your budget.
2. Conventional DVR Digital Video Recorder (4 CH) + Dome Camera - Require installation around the house but can easily achieve 24hrs full frame recording with up to 4 cameras.
I'm a system integrator for surveillance and communication, and do provide the above services. Feel free to drop me a mail at
markloo@singnet.com.sg or SMS at 98430030 to find out a more appropriate solution to suit your budget.