I am familiar with the Coincident Super Eclipse and a couple of Talon models. I currently run Coincident Super Eclipses (orig's) and have spent time with Talon Firebirds, Khites, and Ravens.
If the Super Eclipses are any indication about the rest of the Coincident line, the two companies' respective "House Sounds" could not be more different. The 'Supers' are lively, engaging, dynamic, and perhaps somewhat unrefined. The Talons I've heard were subtle, refined, and laid-back if also down-right subdued.
Coincident supporters will probably find Talon speakers to sound muted, rolled off, and overly polite. Talon types will likely find the 'Supers' to sound hyped, unrefined, and perhaps unforgiving.
While Coincident speakers really are geared toward tube pwr amplification, I believe Talon will most likely ultimately work best with SS.
In your case, since you have SS current, and will want ease of room placement in a HT system, go with Talon but try to audition some first and only get the latest version with the CMRC x-over upgrade.
I believe the Talon sound is so different from what a lot of folks in Audio are used to, that the Talon sound is almost an acquired taste. The 'Supers' appeal strikes immediately, but may wear thin in the wrong setup.