You are not drunk enough - I could read your post just fine.
You would be well off getting Rod Gervais' book, Home Recording Studio: Build it Like the Pros. Very helpful, especially with isolation. By the way - searching for "isolation" instead of "soundproofing" can help bring up some much better posts and information.
There are a few things to think about..
You will need to know exactly how much isolation you require..which will involve testing. After you move in you'll want to ask your neighbor if you can come take some measurements from their side of the wall, and have someone jam out on the drums in your room during. You will need to make sure that the overall weakest link in the isolation chain is what you require. You also may not require floating the floor unless you're not on the first floor, depending on how much isolation you really need.
Rod's book goes over everything from wall construction, to HVAC and ventilation, electrical, and everything you would need to know about it.
You might want to make sure that you can do construction inside the apartment before you move in, too.
Good luck, drink water!