I'm getting the same problem he is having, and I'm using the 10.6.3 Snow Leopard DVD. Whenever I install the 10.6.8 combo update I too get the FakeSMC kernel panic error. And yes, I've followed the guidelines on the wiki.
My specs:
D620 BIOS A10 Intel Core 2 Duo T7200 2.07
Intel GMA950(27a2)