Tonguez, I assume you're saying "take a level of an NPC class for your background"? That's a reasonable approach, but d20 Modern Occupations are cooler. They give you continuing stuff (like making certain skills always class skills, etc.). They're just about my favorite feature of d20 Modern, in fact. I'd be very interested in occupations for D&D. If nobody has any, I vote we hash some out right in this thread.