Ok, just to give an update (not sure if anyone cares, but it might be helpful for someone in my same situation).
I went an auditioned a bunch of amps including:
Primare I21
Naim Nait 5i
CA 840A
Arcam A90
Creek 5350
And, the clear winner was the Naim Nait 5i. I was afraid that 50 Watts would not be enough to power my speakers, but after having a home demo, it is plenty. I probably would never have the volume dial past 12 o'clock, which is very loud. The sound with the Naim was controlled, tight and engaging. Every other amp I auditioned was lacking in some department.
So, if you're hesitant to buy this amp because of it's extremely conservative power rating, don't think twice about it.