Bios Mods -The Best BIOS Update and Modification Source

I have a sager NP9280 with Nvidia gtx 285m. Intel I7 975 extreme with 12gb trip chan mem....I was curious to see if the bios could be modded to make the Nvidia GTX 560m work in this model
BiosSager Bios

I have had people tell me that there is an updated bios, But i cannot find one, and sager said that the one I have is the most recent. bios 1.00.09cs / 1.00.04sa

thanks

Have you had any luck with this issue? I'm in the same situation.