Hey everyone, I need some help with some things when it comes to building a pc. Im getting a Asus P4S800 Motherboard, A Seagate 80GB HD, A Kingston 512mb 333 Memory And an Intel p4 2.9 or something cpu. I dont know what power source to buy, the wattage or anyhting, and what video card would be good if i am going to be playing some high graphic games. Also it says it an Atx factor form motherboard, will any atx case work??? Is this System worth building or can any changes be made to make it worth it. Need help soon Thank You.