Thanks for your detailed reply
Actually I am new to DSLR world so I dont have much knowledge about those camera terms you mentioned

I just need to buy a basic DSLR camera to start using it and getting some experience that how to use DSLR properly by changing shutter/aperture/ISO etc, any my budget is between S$700 to S$800 and i just want to shoot some family functions/outdoor/night shoots/Kids etc.
BTW I have one deal of Sony Alpha-200 at S$780, is it a worth buy or not ?