WOW, dude, your web site is just swell!
The game of colours, the overall presence, the ease of use - everything "fits".
The only thing that I didn't like is the flash music. It is too techno and too standard, too loud. Here I see two options: either to take it off completely, or change it and offer the Music ON/OFF button easily located to help your users.
See, the psychology of web sites is a complex thing. Since you have to satisfy almost everybody who visits your business, you need to make it approachable and appealing. Not everyone likes this kind of sounds, so people are likely to turn off their speakers. More likely, lots of them will also play their MP3s at the same time - so your web site will cause them to turn either off. Knowing that they would be listening to their favorite singles, they are more likely to close your site than stop their music.
Anyways, just think about whether you really need this multimedia effect and if it brings in the real value.
From accounting I know: If the value of something that you plan to do exceeds the cost of accomplishing it, then do the thing. If the value is less than cost - get rid of it. I think in your case, the value of having that sound effect is poor vs. signing potential customers.
Hope this helps perfecting your site.