A thin and elegant system?

If I add up the weight of everything in the front of my music room, it is over 500 pounds and pretty much fills a 16' wide wall. Don't get me wrong... it is all there for a reason and produces some wonderful sound, but it got me wondering if there was an alternative out there that was the opposite.

Minimalist, elegant, thin.

So that is the foundation of my question: What thin and elegant speakers do you know of that produce amazing sound?  What dac/amp/receiver that is outside of the standard component box shape?

I'd like to keep the cost of the entire system under $5K.

Thanks!