Moving custom fields in Registration form

[JoshFink]

I posted this in the "How Do I" forum and was told it was a hack that was needed. So here's my question.

I'm looking for something that would allow me to create custom fields in the registration field, i.e. First & Last Name and move them either under the Required fields or Optional fields. Actually, since they are always added to the Optional fields, maybe if the "Field is Required" radio button is selected then it would automatically be put under the required fields header.

Thanks,

Josh