okay so i have just built my first build your own computer, i have no idea if it works because i havent turned t on. now this is where i need help. how do i turn it on? i mean i know the power button aha but i have 3 cds, one with graphics card, one with motherboard and one with the OS. Now which do i put in first, or what im still so lost and is there anything i will need to know when i out the disks in. is it horrificly complicated?