Bios Mods -The Best BIOS Update and Modification Source

Hello, I am new to all this BIOS modding. I am creating this thread because I've searched the forums and I am really more confused then anything on which BIOS mod to use.

So my request is to have the latest BIOS mods for both of my motherboards that have SLIC and the latest option ROMs in them.

Motherboards are:
Asus Rampage II Gene - 1701 BIOS
Asus Rampage III Gene - 1003 BIOS

Thank you very much for your help it is appreciated.

EDIT: Added BIOS Links

Please provide a link to the BIOS download, you can find this on the manufacturers website.

Thanks.