You cannot find a dual core computer with such a configuration for cheaper; this Mesh Home desktop PC costs an unbelievably low £200 including VAT and delivery.
For this, you get the latest AMD Athlon II X2 dual core processor which was launched only a few weeks ago. It runs at 2.7GHz and has 1MB cache. The motherboard is a ASUS M2N68-AM SE2 Mainboard, AM2+ with integrated Graphics.
The rest of the configuration is as follows, New Stylish Mini-Tower Micro ATX Chassis with 300W PSU - Piano Black, 4GB 800MHz Dual Channel DDR2 SDRAM - (2x 2GB), 320GB Serial ATA Hard Drive with 16MB Buffer, Samsung 22x Dual Layer DVD Writer Super Format +R/-R/RW/RAM, 256MB NVIDIA GeForce GPU - Integrated Graphics (SMA) & 5.1 High Definition onboard sound card - 6 Channel Cinema sound.
This Mesh computer also comes with 10 USB 2.0 ports (6 ports at mid-board, 4 ports at back panel) & Network Ready integrated 10/100 Ethernet. Note that it is a Ubuntu Linux desktop and doesn't come with either a Keyboard or a mouse.