HP Compaq dc5850 Microtower Business PC (KA414UT) - AMD Athlon 64 X2 4450B 2.3GHz, 1GB DDR2, 160GB HDD, DVDRW, Windows Vista Business Edition at TigerDirect.com
AMD Athlon X2 4450B - AMD Business Class Dual-Core 2.3 GHz Socket AM2 45W Processor - ADH445BDOBOX - Newegg.com