Installed iDeneb on your Gateway M-Series? I did. Here's the kexts to finish it off.

AppleACPIPS2Nub.kext - Your Keyboard
ApplePS2Controller.kext - More Keyboard
AppleHDA.kext - Sound

These were gathered from around the forums. I used them with Kext Helper b7 on iDeneb v1.3 10.5.5. If it doesn't work for you don't blame me.

Installation Instructions:

Unzip.
Open Kext Helper.
Drag all 3 files in it.
Type in your password.
Easy install.
Reboot with -f.
Done.

Working Kexts - Zip

__________________
Hackintosh (Kyle Clemens' MacBook): Internal: Keyboard: Perfect; Mouse: Perfect; Webcam: Half-way; Audio: Perfect; Display: Perfect; WiFi: Perfect (one problem); Ethernet: Perfect; CD-ROM: Yes; OVERALL: PERFECT!!!

hi there! nice input? have you´ve got any additional data ?

TIA