Hey skijohn, I contacted Augie Fasz (the one in charge of DTR's shop), she said:
View attachment 72097
The one that RedCowboy recommeded looks decent, if you are searching an equipment with more capacities (>20W) don't really know the answer. BTW, beam quality is more important than laser power, also, ESR of diode is important too, but I only know that is provided by the datasheet of the laser, I'm not sure if equipments for that laser diode characteristics exists.