If you're planning to completely upgrade your computer, the Intel Core i5-661 makes for an excellent starting point. It's a central processing unit, a graphics controller, a memory controller and a PCI Express controller all in one. It delivers fast performance and reasonably cool running temperatures. Originally retailing for $529.95, the Intel Core i5-661 can now be purchased from [[xref:
http://www.centrecom.com.au/catalog/default.php?cPath=27_28|Centrecom]] for just $257.