I'm making a new budget build for a relative and would like to keep the rpice around 600 dollars or so, maybe a little more. I'm wondering if my best option would be to build a Conroe based system or one based on AM2. They are casual computer users so they will never notice the difference but I do want the system to be dual core. I'm thinking of possibly going witha motherboard with intergrated graphics though such as the Nforce 6150 chips on the Am2 side. Also what speed ddr2 ram is recommended for both of those platforms. Thanks, Rob