Smitty,
The Navy has a website that is available to Navy and Marine Corps personell, both active and retired which has a load of courses you can take online...FOR FREE!!!!
Perhaps your branch has a similar page.
If not, I wonder if the Navy site may be available to you as well, seeing as how you ARE military. Give it a shot at
http://wwwa.nko.navy.mil I believe eligibility is authenticated by simply submitting your ssn. It's certainly worth a look!
Randy