Total newbie with miniature 3 axis unit

I've acquired a 3 axis unit with Phytron ZSS 32.200.0.6 stepper
motors (specs below) connected to micrometer style drives. I would
like to try small scale machining (the maximum travel, in each axis,
is 25mm), perhaps using a Dremel or similar tool. I guess this would
be capable of working on wood or plastic, and possibly brass or
aluminium/aluminum, but not on iron or steel. I have no experience of
setting up CNC, so any help or comments that may be offered would be
gratefully accepted.

I'm looking suggestions of appropriate stepper motor drives and
software to operate the combination. I have a StepMasterNC SOP-2B
(http://stepmasternc.com/stepmasternc_010.htm and
http://stepmasternc.com/datasheet4axissop-2.pdf).Can (should) this be
used?

I can sometimes be away from the Internet for two weeks or more, so
please bear with me if I don't reply quickly to any messages.

Regards,

Mycroft.

Phytron ZSS 32.200.0.6 partial specifications:
Diameter: 32mm
Steps per revolution: 200
Leads: 8

Parallel connection (4 leads)
Phase current: 0.6A
Phase resistance: 4.65 Ohms
Phase inductance 5.3mH

Series connection (4 leads)
Phase current: 0.3A
Phase resistance: 18.6 Ohms
Phase inductance 21.2mH

Unipolar connection (5 or 6 leads)
Phase current: 0.42A
Phase resistance: 9.3 Ohms
Phase inductance 5.3mH

Holding Torque: 50mNm (7.14oz-in)
Detent Torque: 3mNm (0.43oz-in)
(Holding torque in bipolar mode with 2 phases ON at nominal current)
Inertia: 0.01kg-cm2 (0.05oz-in2) (Sorry, I can't show superscript)
Axial Load: 5N (1.13lbf)
Radial Load: 15N (3.38lbf)
Mass: 0.15kg (0.33lbm)

http://www.phytron.com/
Click on Stepper Motors
Click on More information on ZSS
for detailed specifications