I just needed some advice on a gaming PC that I am building for my brother! His budget is $400 and I was wondering what you guys thought about these parts that I will be using. He will not be playing any intense games or rigorous programs. He just needs something that can play Minecraft smoothly, be reliable, long-lasting, surf the internet, and do homework. Are there any improvements that can be made? Please let me know! I really appreciate the feedback! Thank you!