Adam, I'd suggest you also audition:

Monitor Audio Platinum 300 (or wait for the slightly smaller 200 to be released)...
Revel Performa F52

Just my opinion, but your approach to your next and possibly final speaker upgrade is the best way to do it: take your time and audition as many high end speakers as possible (and avoid incremental upgrades - such as from $1K Towers to $1.5K Towers - just go right to the top of your budget next step and save all the cash you'd have wasted on in between purchases and sales)...