power supply for stepper motors

Hi all. I have a power supply that I got from a scrap yard.It is made
by superior electric model MPS3000A. Output is 24v dc 10A. It has a
slo-syn type PIM151 indexer module attached. It works fine, using a
bcd thumbwheel type switch which it was connected to. I am also
building a plasma gantry table,and intend to replace the pim151 with
another style bipolar driver, such as geckos. My question is do I
still need to use the pair of very large power resistors which came
with this older setup,and why were they there in the first place? And
is this an appropriate power supply for the geckos? Would this power
supply also work with gecko 320s or 340s if I go the servo rout.I
have
been pulling steppers and servos from old copy machines in the
scrapyard and have good selection.

Thank you. Donn