Our company does these types of designs. And you may consider working with us. However, in the meantime, there are some valuable resources that you can take advantage of. First, please take a look at our website, specifically go to the listening room there. This is a tutorial section and provides tips on acoustical issues that need to be dealt with. In addition to this I can recommend Alton Everest's books. The forth edition Master Handbook of Acoustics is one of the best. It's clearly written, well organized, and easy to understand. Another resource you might consider is the CARA software package (we sell this as well so I am biased, but we sell it because I do think it is one of the best values out there). This package allows you to simulate room conditions and their affects. It takes some time to navigate through the package--but it is extremely powerful and worthwhile. Our website is www.rivesaudio.com. If you choose to hire an acoustical engineering group, you will probably be impressed with what can be done to a room to make it right. If you don't go this route, though, do get the resources mentioned and take your time in learning the material and doing it right--it's a great opportunity, and you have excellent equipment, so it pays to get the room right and get the most out of it.