Dual GPU

Is this ssd:http://pcpartpicker.com/part/kingston-internal-hard-drive-sv300s37a120g reliable? And Is it better than samsung 840 evo?

Just got a new Asus 1080p monitor and I hooked it up via HDMI because I read something about the color intensity being better with this type of connection. Is this true? Also, I had to enable overscan to 0% in order to get my monitor to display in full screen. Can someone explain what overscan...