Try Auralex (think it's auralex.com), or do a search. They have a service which will suggest treatment(s) depending upon you actual room configuration and sonic complaint.
If there is a Guitar Center store in your area, they will have a catalog and perhaps some treatments on display.
Good luck,
Barton
If there is a Guitar Center store in your area, they will have a catalog and perhaps some treatments on display.
Good luck,
Barton