whats a good setup for making some old school music?

Hey everyone,

I found some local hardware.  What I am trying to do is use my Atari to make the music for my retro inspired animated shorts.

I am totally new to this Midi art form.  I am  interested to hear if you guys have any sugestions for midi hardware and software to get this job done.

Here's what I have so far.

Atari 4160ste 4meg
Atari st520 1meg/at-speed
boxed Cu-base.
Band in a box.



Thanx so much for any suggestions!

~S