Haha I'd love to.
The basic ones, if I can remember em all, are Middle America, Empty Nesters, Urban Trendsetters, and one other I can't remember. It's funny because they have a male and female for each group with names like Buzz, Maria, Ray, etc who have traits and needs you're supposed to know by heart.
Let's say a 40 something white guy comes in with a kid. Immediately I should assume he wants a media center computer so he can be the "technology guru" of the family and increase the time his family spends together. By Best Buy's limited view, every 40 something white guy must have a wife, two kids, a three bedroom house.
More later, boss + sales quote = no more posty.