So very soon I will be putting together a new computer, but there's something that's really bothering me. I read about these front panel connectors, but one thing is bothering me. I didn't get those things with the motherboard, so now I'm starting to panic. Do those things usually come with the case that you buy or do you have to buy those things separately? Because making sure your power button works and that you can connect your headphones and microphones seem pretty important.