I would like to thank Worthit. He helped me several times with the response to RFE. I also got a lot of help from the information he posted.
I thank fsa2000 and lovewind for answering my queations, and springiscoming and popo76 for sharing their RFE information.
My case detail:
ND: 09/06/06
RFE:02/08/06
Response to RFE:05/05/06
Approval:05/31/06
Good luck to everyone!