Thanks for responding!
Yes, I've since decided on the Roland RD-700SX with SRX-11 expansion card. I listened carefully to everything I was willing to pay that much money for, and it felt and sounded the most like what I personally was looking/hoping for, and sounded sufficiently wide without needing to go to any special lengths. (Though I may decide to clone it and make some slight EQ changes at different pans).
The Triton's pianos, as well as Yamaha and Kurzweil's, even with expansions, were just too bright to my ear. I can see where many would love them, though. In the end, I'll likely be using the eastwest bose softsynth anyway lol.