@jazztherapist Lot of great suggestions here, but as I think more about your situation it strikes me that you're kind of flying blind (listening blind?) on this project. You say that you'd like to move up to a better/more resolving system, but it's also pretty clear that you haven't heard many good systems lately. Brick and mortar is not the way to check out a lot of high end options.
Consider attending an audio convention so that you can actually hear some of what's actually available these days at various prices. Attending AXPONA or RMAF is a fairly low cost way of educating yourself --- certainly it is cheaper than buying an expensive component or two, only to find out that they're not really what you wanted.
Good luck!
Consider attending an audio convention so that you can actually hear some of what's actually available these days at various prices. Attending AXPONA or RMAF is a fairly low cost way of educating yourself --- certainly it is cheaper than buying an expensive component or two, only to find out that they're not really what you wanted.
Good luck!