Just want to know which is better for running AutoCAD (3D Modeling Software)... Option 1: CPU: Intel Pentium Dual-Core E6800 @ 3.33gHz Mobo: Intel G41 Corner Field RAM: 3GB Kingston DDR2-800 Dual-Channel Graphics: Nvidia GT240 1GB HDD: 160GB Option 2: CPU: Intel Core2 Duo E7600 @ 3.06gHz Mobo: Intel Q45 Cube Cove RAM: 2GB Samsung DDR2-800 Dual-Channel Graphics: Intel Integrated Media Accelerator HDD: 250GB