Hello. I'm his friend. this is my very first build. i am on a budget. can you just tell me what is a good way to start out my first build? i don't need a mouse or a keyboard. i already have an OS for it. i have a monitor,mouse and keyboard. i just need a motherboard,case,power supply, and all the other insides of it. i want a good build but for it to be under 600 dollars. i want a decent gaming comp. please help me