Many thanks to OP for the really hard work. Everything worked except Sound and Samba shares. I had problems with the audio like some of the others. Forgive me if I missed any similar solution posted earlier; it seems this thread is very popular

Here is what I did:
1. download MKext Tool from http://pcwizcomputer.com/index.php?o...=151&Itemid=48

2. Start it, click on tab "View Contents".
3. Choose /Extra/Extensions.mkext
4. Click on View Contents.

5. If any of the audio exts are missing (LegacyALC883.kext, LegacyAppleHDAHardwareConfigDriver.kext, LegacyPlatformDriver.kext) then it might help to create a new Extensions.mkext.

Note, follow the following only if 5 is true.

6. Click on Pack tab on MKext Tool.
7. Drag all the kexts in /Extra/CustomExtensions to the window.
8. I saved the extensions to an Extensions folder on my desktop.
9. I picked the "View Contents" tab again and opened the just created mkext and here is the result:
Found 7 kexts:
/Volumes/SnowCoco/Extra/CustomExtensions/fakesmc.kext - org.netkas.fakesmc (2.0)
/Volumes/SnowCoco/Extra/CustomExtensions/FramebufferDisabler.kext - net.osrom.kext.Disabler (1.0.1)
/Volumes/SnowCoco/Extra/CustomExtensions/LegacyAppleRTC_32bit_Only.kext - com.apple.driver.AppleRTC (9.9)
/Volumes/SnowCoco/Extra/CustomExtensions/NullCPUPowerManagement.kext - org.tgwbd.driver.NullCPUPowerManagement (1.0d2)
/Volumes/SnowCoco/Extra/CustomExtensions/OpenHaltRestart.kext - com.psystar.driver.OpenHaltRestart (1.0.3)
/Volumes/SnowCoco/Extra/CustomExtensions/PlatformUUID.kext - com.superhai.driver.PlatformUUID (1.0)
/Volumes/SnowCoco/Extra/CustomExtensions/Sleepenabler.kext - sk.triaxis.kext.SleepEnabler (1.0)

10. I trashed the older /Extra/Extensions.mkext. It will ask for auth. You may decide to move it; I was less patient.

11. Copy your new Desktop/Extensions/Extensions.mkext to /Extra/Extensions.mkext. It will ask for Auth.

12. Delete cache. In terminal mode do:
sudo rm -rf /System/Library/Caches.

13. You can also run pfix as described by OP.

14. Reboot.

15. Go to System Preferences -> Sound (Thanks OP)
Select Internal Speakers for both Sound Effects and Output.

I would suggest only the brave to try this first and then verify that I am saying something sane. This is my first post here.

Now to figure out Samba shares: Mine just say connecting to Server. Works fine with windows client.
Other stuff: Time Machine: fine. Sleep is beautiful. CPU= E5200, 2 hard drives. Can't test Parallels as E5200 does not have VT extensions
Originally had 10.5.6. Would not boot from USB stick so I created a separate partition on one drive, put the Snow hackintosh installer on it and booted from it. Installed OS on the other drive and continued as described by OP. Beautiful. The original hard drive with 10.5.6 I reformatted and now use it for time machine.

Samba shares: Still trying to figure it out. Other Apple customers have the same problem.