Wander around the acoustics forum as they have some good designs that are easy to make.
http://forums.studiotips.com/viewtopic.php?t=535
Search "studiotips and "superchunk" on google & you'll pick up some useful hits.
This link is a mother load of info on the topic:
http://www.bobgolds.com/AbsorptionCoefficients.htm
Also you might go to the auralex site and send in a request for a room treatment design (it's free). You can get an idea how they'd treat your room...it'll be pretty much what one would expect after you read everything you've mentioned(ethan's white paper) & my links here. You'll treat the corners (all 4) for bass, then the first reflection points on the walls & ceiling...etc..
http://forums.studiotips.com/viewtopic.php?t=535
Search "studiotips and "superchunk" on google & you'll pick up some useful hits.
This link is a mother load of info on the topic:
http://www.bobgolds.com/AbsorptionCoefficients.htm
Also you might go to the auralex site and send in a request for a room treatment design (it's free). You can get an idea how they'd treat your room...it'll be pretty much what one would expect after you read everything you've mentioned(ethan's white paper) & my links here. You'll treat the corners (all 4) for bass, then the first reflection points on the walls & ceiling...etc..