OK, yes I have Dell M4500 with 4GB RAM, nVidia card and 2.67GHz i7 CPU mentioned above.
Are you interested in my dsdt or just patch file so you can patch yours dump?
Here is what I've added to /Extra folder, cause all (except VooDooHDA.kext) is loadable from E/E so you can use Vanilla instalation.
SpeedStep, TurboBoost and HT works with DPDT
Battery power management and indicator works with latest VoodooBattery.kext
nVidia digital outputs (both laptop display and DP port) works with official Cuda drivers from their web (if you don't need DP port and use LCD only you can use just Graphic Enabler = yes in Chameleon without driver update). QL/CL works in both cases. Connecting analog VGA with CUDA will cause system freeze.
Restart and Shutdown works with patched DSDT
Deep sleep (hybernation to HDD) work with DSDT
I haven't tried (RAM) Sleep cause I don't use it (I expect work wake-up only with external USB keyboard)
Intel Audio works from DSDT + latest VooDooHDA.kext (must be loaded from S/L/E). Delete AppleHDA or use AppleHDAdisabler.kext in E/E
Ricoh SD/MCC PCIe card reader works with modified linux opensoarce SDHC driver (recompiled for mac)
Gigabit Ethernet card work with AppleIntelE1000e.kext from here http://www.insanelymac.com/forum/topic/205771-appleintele1000ekext-for-108107106105/
SATA and eSATA work in AHCI mode with AHCI SATA injector (I've used one from iAtkos)
I use 10.8.3 lapic kernel from osx86.net
Alps Trackpad works with Voodoops2controller.kext (I use modified version to enable scrolling with holding both buttons together), had no luck with original one in 64bit mode
Firewire iLink port and usb work OOTB
Wifi DW1520 kext is loading but I'm not able enable wifi radio - I don't know anybody to make this card working in ML (you might replace it for supported one)
For FakeSMC smbios use MacbookPro6,1 or 6,2. You need to boot with npci=0x2000 kernel flag.
System Geekbench score is slightly above 6000.
I will post the DSDT as I get home later, let me know if you prefer compiled version or just the patch itself.