Mod? "How did you find us"

[MrEyes]

On many sites you will no doubt have seen a "how did you find us" question on registration. Something like:

How did you find us?
- Search Engine (please specify)
- Word of mouth
- Advertisement (please specify)
- The magic pixies
- Other (please specify)

Are there any mods that implement this in VB? I know I could use a custom profile field however this would mean adding two, one from the combobox selection and another for free text.

[anakayam.us]

Nice Idea.its can be inserted at the time of register.

[Dismounted]

Creating profile fields would be the easiest way.