You don't need an extreme system to game with now a days. If you an handle a game from 2005 you generally handle most new ones, blame consoles. I've ran my bfg 9800gt for 2 years until it finally burnt down. Only got a gtx260 because of lifetime warranty and same price.
Just my opinion on it. I'd stick with what ya got since it'll be more than enough for years to come. (that and intel clock to clock is greater than amd, newer tech. 100MHz for intel cpu's = more than 100MHz for amd.)