If you don't want to spend much, this Sandy Bridge dual-core Celeron would be a huge performance increase and only $50.http://www.newegg.com/Product/Product.aspx?Item=N82E16819116409
I did see that at Frys earlier today for the same price. It seemed like a great deal. It was the G530 I believe. I'm assuming its up to the task for some mid-range gaming, such as LoL, Civ IV, and some LAN games among some others. Thanks for the suggestion!