Hey, will this support games like minecraft 'n' COD etc?

You will want to upgrade the video, find out how big the power supply is, it's not a bad system, just the video will bog you down some. Dell power supplies don't generally have enough capacity to put in a high end video card, you would probably be better off going to a local mom and pop computer shop and having them build you a machine. If you are sticking with dell because of financing or warranty etc, the machine is fine other than the video chipset.