To update bios, you simply download it from asus website http://uk.asus.com/product.aspx?P_ID...ntent=download

Then you put file from archive (remember it's name) on a pendrive, go to bios and find update option, then choose pendrive name and correct filename... wait - and there it's ready.

Detailed instructions about installing you can find a few pages before (the same with kexts from 10.6.4, which I have uploaded recently, if you can't find them - send me a PM). Remember to put nullcpu(...) before rebooting for the first time after updating to 10.6.4

Any questions - I'm here~