I've just ordered some dichro's from Rob so I'll probably be in touch with him anyway. The most ideal solution is to get a few Die4Drive boards and hook the lasers up to that, which would give me complete analog control on all three (RGV) modules, but I've got no idea on where to get the Die4Drive boards, except build everything from scratch.
I'll do some measurements on the laser's current draw when I have my lab set back up (near the end of the week), so I can figure out what the ballpark current value should be. The unit only has a heatsink so I don't need to worry about messing with the TEC.