Yes the board is good for games, But do you use the onboard video? If you do then you need to get a dedicated video card for games. The motherboard has a PCIe x16 slot for as video card.
Look at the system requirements for some of the games you want to play and look at the resolution your monitor will support and the price of the video card and get the best card for the price.
Toms has a article called Best Graphics Cards For The Money: August 2010 http://www.tomshardware.com/reviews/geforce-gtx-460-radeon-hd-5570-gaming,2697.html
Look at that for the Video card.