Yes, after studying the VeloBase site, it appears that the second set is Suntour Superbe Pro, LD-4600, linked here:
VeloBase.com - Component: SunTour LD-4650, Superbe Pro
Definitely close enough for me, and they sure do seem to have a good feel, and appearance.
Now I need to hunt up a set of nutted Superbe brakes...