Another field that is currently "hot" right now is energy and commissioning. A BSME with some trade experience could find this very rewarding - and although this field has been cyclical in the past, owners and facility managers are beginning to come around. With energy costs going no where but up - people are starting to realize that reducing costs associated with energy consumption is one of the most effective ways of saving $ and improving processes, comfort, etc. Best thing is that ALL industrys and property owners have the need for these services. Have your nephew check it out.