For the rest of us (who are playing with a full deck of cards):
I threw together a program that uses an interface that is very similar to BD-RB that I use for reencoding groups of files using NVENCC. I call it NVENCCRE (very original, eh?). I just thought that some of the folks that use one of the NVIDIA cards with built in encoders might find it useful. You just extract the EXE file and put it in the same folder as BDRB (it accesses the tools folder of BD-RB to call NVENCC and MEDIAINFO).
Nothing complicated, I just wrote it to make some things I was doing easier. Hope you find it useful.
NVENCC Reencoder
Just remember --- it requires an NVIDIA video card that supports reencoding. It won't work without it.