http://www.newegg.com/Product/Produc...82E16820145303
http://www.newegg.com/Product/Produc...82E16819115072
http://www.newegg.com/Product/Produc...82E16813128463
http://www.newegg.com/Product/Produc...82E16817151093
http://www.newegg.com/Product/Produc...82E16814127512
http://www.newegg.com/Product/Produc...82E16822136544
That would cover the core of it. Case and monitor + CD drive are up to your choosing.
The CPU is the best bang for the buck when it comes to gaming, the rest is quality parts but not super top end stuff.