You're in a great position if you can get the ACNP on top of the FNP, from what I can tell the critical care field is wide open right now for ACNPs, and the money a decent step up from FNP depending...
I work in Maryland and am an FNP. I found that the doctors and midlevels in EDs are mostly staffed by their own private physician groups, especially in the smaller hospitals, and you're not employed...