Hey WILL, what would be a suitable length for an article (Microsoft Word format) for the magazine?

My article is using Courier New 10point font, and I am barely into it yet, but it is already almost 3 pages long (A4 size, includes diagrams).

Also I am going to have source code for download too (can supply a download link), but I am going to explain some of the code in the article as well.

Should I break it up into parts?

cheers,
Paul