I recommend this: Dell Inspiron 14R
It has a HDMI port, 2 USB 3.0 port, 8 in 1 card reader, Windows 8 64-Bit and the i5-4200U processor uses only 17W, perfect for you battery life concerns. It also has a built-in HD Graphics 4400 that should be able to play your games in Medium quality. It's 14...