Heres my recomandation.
CPU
http://www.canadacomputers.com/cc/index.php?do=ShowProduct&cmd=pd&pid=005886&cid=CPU.611
Mobo
http://www.canadacomputers.com/cc/index.php?do=ShowProduct&cmd=pd&pid=006505&cid=MB.693
Case
http://www.canadacomputers.com/cc/index.php?do=ShowProduct&cmd=pd&pid=005036&cid=CS.664
Graphics Card
http://www.canadacomputers.com/cc/index.php?do=ShowProduct&cmd=pd&pid=006010&cid=999.243
Ram
http://www.canadacomputers.com/cc/index.php?do=ShowProduct&cmd=pd&pid=004117&cid=RAM.178
Heatsink
http://www.canadacomputers.com/cc/index.php?do=ShowProduct&cmd=pd&pid=004770&cid=FN.349
Total: $1084
Thats just the tower without any monitor and keyboard.
You can decide on those.
CPU
http://www.canadacomputers.com/cc/index.php?do=ShowProduct&cmd=pd&pid=005886&cid=CPU.611
Mobo
http://www.canadacomputers.com/cc/index.php?do=ShowProduct&cmd=pd&pid=006505&cid=MB.693
Case
http://www.canadacomputers.com/cc/index.php?do=ShowProduct&cmd=pd&pid=005036&cid=CS.664
Graphics Card
http://www.canadacomputers.com/cc/index.php?do=ShowProduct&cmd=pd&pid=006010&cid=999.243
Ram
http://www.canadacomputers.com/cc/index.php?do=ShowProduct&cmd=pd&pid=004117&cid=RAM.178
Heatsink
http://www.canadacomputers.com/cc/index.php?do=ShowProduct&cmd=pd&pid=004770&cid=FN.349
Total: $1084
Thats just the tower without any monitor and keyboard.
You can decide on those.