If you are now talking about spending up to $5000 on speakers instead of several components, I would definitely look into Merlins. The latest TSMs (maybe even with a decent, inexpensive sub for just a little more bottom end) would be terrific. Another idea would be used VSMs. I believe, from years of experience with Merlins as well as other speakers, that the TSMs and VSMs are two of the most accurate, enjoyable speakers made. That makes upgrading from there so much easier!
Good luck!
Good luck!