Make Me Marketable!

I am a school nurse and love this specialty. However, my husband may be getting a promotion in the next year or so which will move us from N. Texas back to Louisiana where we are from. I realize that I may have trouble getting a school nurse position in LA, so I am taking steps now to make myself more marketable if I have to go into a hospital position. I came into school nursing as a pretty new grad, so my hospital experience is negligable. If I have to go back to the hospital, there are several areas I am interested in, like Psych, Mother-Baby, Cardiac/Tele, Pediatrics, etc. or maybe even a MD office or urgent care clinic. But of course, I do not know what will be available in the future when I am looking.

Soooo, if I get a PRN job now to beef up my resume, would you recommend going Med/Surg, would that give me the most options if and when I need a hospital job? I would prefer a Pedi Med/Surg, but would that limit me if I was to go into something like MB or Psych? What about a PRN at an urgent care clinic, how would that help or hurt me if I have to go the hospital route? I have ACLS and will be keeping it up, should I get PALS or any other certifications? What about a refresher course? Since I have at least a year before anything will happen, I can pretty much do whatever I need to in order to be marketable. I do not want to quit my current job, however, so PRN is a must although I can do FT in the summer. Thanks in advance for any advice!