You should have access to various DoD-related training material. If you're current position qualifies or considers you as IA then there are different things out there. You may want to look into the CERT VTE as well. Lots of good training there that may be free for you (CISSP, SSCP, Sec+, Net+, CEH and a whole host of others).
In my previous unit I was an IMO so I do have my Centcom IA and ISSO certs as well as nearly finishing up the Linux+ training (my prefered server OS). I started the C|EH but the program is kinda buggy and my internet connection right now leaves much to be desired.