How do I connect my Laptop to my HDTV for optium picture?

I am not sure what would be the best way to connect for crisp picture, i have a good graphics card in my laptop and what to play games through my laptop and see the picture on the HDTV. I have a dell laptop E1705 and a Samsung HDTV, I don’t know if that information helps. Someone told me to get a VGA cable, but is that the best way? Plus, i have seen two different cables that say VGA.