Hey, NathDrum, welcome to the forum. I don't have any advice on soundproofing, but I have some on the noise - which you might already be thinking about. Try to get on good terms with your new neighbors before you start jamming. I'll put up with a lot more noise from neighbors that I like compared to those that I don't. I'm assuming that you're a drummer. There's a guy three houses down that used to wail on his drums every day. Never bothered me, though, because the guy was nice. There was another guy who'd play his drums in the garage, but he never closed the garage door, and he was a tool...and that bothered me every single time that I heard it. If your neighbors know you and know that they can just ask you to quiet down if it bothers them, I'll bet that they'll hardly ever ask.