Peterayer: >>I learned that the room and isolation are just as important or even more so.<<
I agree 100%. Acoustic treatment, as called for by system setup within the room, and a decent rack for vibration isolation are key. I believe swapping gear is a waste of time (and possibly money) until you get these right.
If you can create a simple line drawing of your room with equipment and furniture placement (I used Visio) many of the acoustic treatment vendors will give you a complimentary consult on products and placement. Use a mirror or the reflective mylar strip from ASC Tube Traps (aka Optical Alignment Kit) to find reflection points. It is actually quite simple. This is fundamental 'aural infrastructure' stuff. PS: Don't forget the ceiling.
I went with RealTraps and SRA and they've paid huge dividends. Sorry don't mean to sidetrack yr thread. Fwiw, my pick was Sashas.