Information is KING! There is almost no reason to not educate yourself if you are trying to build or develop a better sounding acoustical recording environment. Even if you do not purchase the isolation or acoustic books directly, there are websites and forums dedicated to dealing with existing builds, rehabbing older homes or beginning fresh from out of the ground.

Home Theater Systems and Design Forum Link: http://www.hometheatershack.com/ Recording.org Studio Construction Forum Link: http://recording.org/forum-34.html John Sayers' Recording Studio Design Forum A World of Experience Link: http://johnlsayers.com/phpBB2/index.php StudioTips - Small Room Acoustics Link: http://www.studiotips.com/

These are, in my opinion, the highest rated forums on the Internet that builders of sound related structures visit and get qualified, often expert, advice.