stepper motor advice

Hi -
I am looking to build a small table top CNC machine. I already have some 8mm rails and bearings around 19.5" long and mounts. I am going to use 1/4-20 screws and already ordered the bits from dumprstercnc.com that would be needed.

I ordered based off a 5mm shaft on the motor I have. Shinano Ke STP-42D201-37 Stepper Motor 1.8/step 1.55ohm

Now I am unsure if that would be a good enough motor for what I am trying to do. I want to cut and carve hard and soft woods and some light aluminum and brass.

Thanks -
Keith
(group)