BIOS modding

Has anyone here modded their own BIOS? I have an NV7-133R which offers very few OCing options, and I've heard that if I mod the BIOS, I might be able to uncover some hidden options which might allow a better overclock. Are there any guides or programs to mod a BIOS?

Modbin6 is used to modify the Award Modular bios.

HERE is a nice guide for BIOS Modding from one of the best

lol...that guide links to the same program I linked them too also...

Nice guide and nice find...