LINUX/EMC Help

I am getting ready to set up Red Hat 5.2 LINUX and EMC on a p120 computer
I am need of help on this project.
What do I need for the computer system? I will have only the LINUX and EMC
on the system, unless it is recommended that I also have the CAD/CAM on the
same computer. This computer will be in the shop, with the mill and lathe.
I have another computer that the CAD/Cam will reside on operating under
Windows 98. I plan to transfer the programs with floppies if feasible.
How big of a hard drive?
How much Memory?
Any other requirements or recommendations?

More questions on LINUX/EMC coming later. Hopefully someone will spell out
the requirements, and the setup for loading LINUX, and the set up for EMC as
far as loading onto the computer, setting parameters will come later. This
basic setup information could be really helpful to everyone that is not a
guru, in getting there LINUX operating system and EMC set up.
Then they can fight to get it to run.
Thanks,
Bill
List Manager