i'm not in either field, but i do have friends who do medical coding/assistant and can't find any jobs for the last couple years since the economy let down. it's not as "in demand" as they advertise it to be.
Check out monster.com or other Job advertising web sites. Jobs are more in demand in some areas than in others. Type in your zip code and see who's hiring. Usually there is a number next to the field your looking for to show how many oppertunites there are. Example