Should I apply for part time?

I have my BSN and RN, and have only had them since September. I am working in Developmental Disabilities nursing right now, and while I enjoy what I do, I really feel like I need to get some hospital experience to keep up my clinical skills. Unfortunately, I live in an area without a nursing shortage, and relocating to another part of the country is not an option. Would it be worthwhile to apply for part-time jobs? Is this a good way to get in at a hospital? I am very underpaid, so part-time wouldn't be any worse financially than I currently am, and I could COBRA my health insurance if I have to leave my job, so that would give me 18 months to move from part-time to full time, if that is possible...

What do you all think?