1st off: this update needs some (~2) restarts until running, so at first panics are normal. patience

and i guess to be on the safe side it would be better to remove the "troubling" kexts like dont_steal... and ..power_management.. . disabler should hve taken care of them, but maybe not. (you did clear cache, how about repairing permissions?)

i know you are on vanilla, but you could also try to use voodoo kernel as it blacklists offensive kexts ..

hope my 2cent help ..

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Leopard 10.6.5 | Core i3 | Gigabyte H55M-USB3 | ATI 5770 | Coolermaster Cosmos