I have a Sandy PC with i5-2400 CPU and inbuilt Intel HD Graphics. I do not play games, but use it for photography and simple videos. I would like to connect second monitor. General opinion seems to suggest that it is best to get two identical monitors and connect these using DVI. There is only one dvi connector on the motherboard; what is the best solution? One or two basic graphic cards, or a VGA to DVI adaptor?