Create a dropdown for a custom user field, is this possible?

[JoshFink]

I want to create a custom user field that uses a list from table to populate it. Kind of like when you have multiple stlyes and you go to Edit Options and drop down the style sets.

User Field id = 5
User Field name = Neighborhood

Table in Database : P_Neighborhoods
Columns in Table :

ID - SmallInt(5)
subforum - Char(30)
Title - Char (40)

I want to display the title field but store the subforum field.

Thanks for all the help,

Josh